#1- Not necessary.  This is used if someone wants to try to get Plug-and-Play working.

#2 - Not necessary when using a pre-programmed GAL.  All of the GAL's from 9th Tee are pre-programmed.

#3 - Not necessary when using a Legacy ISA NE2000 Ethernet Board.  The IRQ is set to IRQ5 with a trace on the middle pins of J5.  If you wish to use a different IRQ, cut the trace and install the connector.  

#4 - Required for the power indicator light on the board.

David Ranch was kind enough to provide very detailed assembly instructions and pictures and they can be seen here.

Mark's Assembly Tips:

• First check the list above and make sure that you have all of the items listed.
• You will need a 15-30 watt soldering iron with a very small tip.  You will also need very small diameter solder.  It is helpful to have desoldering braid and/or a desolder pump to fix solder bridges.
• Start with the GAL (U3).  Position it like the picture above shows.  Start soldering one pin on each corner.  Holding the board, the GAL, the solder and the solder iron takes about 4 hands so figure out what is the best method for you.  I use a circuit board vice and hold the GAL down and hold the solder in place with my left hand and hold the iron with my right hand.  It might help if you have someone that can hold the gal down.  After you have the corners solder down, solder all of the pins on each side.
• Do yourself a favor and stop soldering at this point.  Get a bright light and magnifying glass and inspect the solder joints of the GAL for bridges and cold joints.  It also helps to use an ohm meter and a sharp set of probes to make sure that none of the pins are bridged.  Make sure that the GAL is properly soldered, because once the ISA & PCI connectors are soldered down, it is very difficult to inspect the GAL.
• Next solder the two or three surface mount chips (U1, U2, U4).  U2 is not required for normal operation and is only there in case someone wants to try to get plug and play working.  Line up the chips with the notch printed on the board.  Hold the chips down and solder the corner pins first and then go back and solder the rest of the pins.  After these are soldered, inspect the solder joints with a bright light and magnifying glass.  
• Solder the 4 resistors (R1, R2, R3, R4) next.  Just match the color codes to those in the table above.  It does not matter which way they are soldered in.  Just bend the leads so that they will fit thru the holes.  Then solder the resistor and then clip the leads close to the board with cutters.
• Next solder the .1uf Capacitors (C1, C2, C4, C5, C7).  They are marked 104z.  It does not matter which way they are soldered in.  Just bend the leads so that they will fit thru the holes.  Then solder the capacitor and then clip the leads close to the board with cutters.
• Solder the .01 Capacitor next if you will be programming your GAL.  It is not required if you have a preprogrammed GAL from 9th Tee.  It is marked 103.
• Next solder the Tantalum Capacitor (C6).  It is marked 10 35+.  Make sure and line the + on the Capacitor with the + on the board.
• Next install the Green Power LED.  The longer lead is positive.
• Next, solder the power connector (J4).  
• If you are using a normal ISA Ethernet board that can be configured to IRQ5, you will probably not need to install J5.  It is used to select the IRQ.  There is a trace on the board that connects the middle two pins together and this selects IRQ5 which is the default that most people should use.  If you wish to be able to select IRQ's, then cut the trace between the two middle pins of J5 (on the top of the board) and solder the connector to the board.
• If you are going to program your GAL, then you will need to solder in J4.  It is not needed if you bought a preprogrammed GAL from 9th Tee.  If you do solder it in, you will need to remove one of the pins in the header.  Just pull out the one that does not have a hole in the circuit board.
• Before soldering the ISA and PCI connectors, get the light and magnifying glass back out and inspect all of the solder joints.  You may also want to use an ohm meter and sharp probes.  Just touch one probe to the pin on the component and the other probe the the solder and sure that you have continuity.  Also, on the chips, you might want to check each pin to make sure that you do not have continuity with the next pin (solder bridge).   Once the connectors are soldered on, it is nearly impossible to inspect all of the solder joints.
• Next, solder the ISA connector.  Before installing the connector, visually inspect the pins on the connector to make sure they are all straight.  Carefully line up the pins and press the connector down against the board.  Solder the two end pins on each end first to secure the connector and then solder each of the remaining pins.
• Finally, solder the PCI connector.  Before installing the connector, visually inspect the pins on the connector to make sure they are all straight. This is very important since there are so many pins to line up.  Carefully line up the pins and press the connector down against the board.  Solder the end pins on each end first to secure the connector and then solder each of the remaining pins.
• Get the light and magnifying glass back out and check all of the ISA and PCI pins for good solder joints.  If you see any suspect joints, just reheat the joint and add a little solder.  While you are at it, double check all of the solder joints one more time.  
• Your TiVoNET board should be ready to use.

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