Alright, I think you have your wires crossed here... Let's try and straighten them out...
leedavid said:
1. Is it possible to solder the D0 Point from the top. Do not wish to remove the motherboard from the case. All the tutorials and pictures I have seen show D0 connected and soldered from the bottom.
If you are doing a wire install you pretty much should take out the MOBO... it's way easier to work on that way. It is also a way easier sodler point at the bottom of the board... but that is also your preference... If I were you I'd do the bottom.
leedavid said:
2. Since I'm going to be using the (#10 Wire install Adapter) below to connect the LPC to the X3 do I need the (#9 PinHeader)
Nope #10 is the same thing as #9 but with wires hanging off of it.
leedavid said:
3. With my install the X3 mounted directly on top of the Xapter. Since I'm doing a wired install where do I mount the X3 on his? How do I secure it so th X3 does not move around?
#6 is a sticky pad for the X3... just stick it to the side of your xbox. Your wires will be soldered on the bottom of the MOBO and stick out the side... you then run them over to the top of the board... find a good spot for your chip and stick it there.
Be aware that you have to hook up #3, #7 and #4 to your chip... so don't put it to far away from these point. A good rule of thumb is to completely connect your chip... and then mount it.
leedavid said:
4. Pretty damn nervous

about this any advice, words of wisdom or a tutorial that is specific to the steps I need to go through would really be apprecated. I have only done one of these and I'm very much a newbie.
If you check out the two links in my sig they point to a X3 install on a 1.6. It's not excatly what you're doing but it goes through how to solder and has some good pics on what your solder should look like. The second link talkes about how to check your pins for the correct voltage... and how to use a multimeter. It also shows how to desolder... so if you decide to go that route your covered.
There is also a sticky that Martin C made that has a great tut on soldering... watch the video's.
Lastly get some desoldering braid even if you do the wire install. That way if you need to remove any solder or make a solder splash it's a very quick and easy fix.
Most people screw up when they make a solder splash and try to clean it up with the iron... the iron's not made to do that and it's an easy way to kill your board. Desoldering braid is 3 bucks... well worth the price!!
Good Luck!!