Since it appears I'm going to have 2 reformat my computer to do this now

I will tell you how I did it with one gun.
First setup the sensor bars, there are two methods: vertical or horizontal.
Horizontal looks like this: ||
Vertical looks like this: =
Then once you set those up in order (the cords are supposed to hang down from the bottom), plug the sensor bars into any usb port (no installation, because the usb is only for powering the sensor bars on).
Next, DO NOT install the EMS LCD Topgun driver, use Smog's Driver instead at:
http://xoomer.alice.it/guncon2/Then look at your EMS LCD Topgun's bottom area and you will see a switch that says "X/P", make sure that the switch is pointing right for "P". Now plug-in the EMS LCD Topgun, and then a screen will pop-up asking for a driver. So, now say search "automatically" and eventually the driver will be found and installed. If the driver is not found, restart the computer then re-attempt to install it. Yeah, the EASY part is complete

Now to do the most DIFFICULT part, hardware calibration setup. First turn on your laser pointer by flipping the switch on the left side of the gun up and making sure that recoil is not connected (recoil could mess up the hardware calibration). Point it at the screen with the sensor bars and make sure there are no deadzones (laser disappears in an area of screen, moves weird, etc.) by removing other IR sources by turning them off, for ex: direct tv box, wii sensor bar, etc.
To do hardware calibration: Look away from the screen with the sensor bars. Then hold A and B on the sides of the gun, until the red laser turns on. Note when you do this hardware calibration please note you only get six shots to calibrate with, so when the gun's laser blinks, one shot has been completed. If the gun's laser does not blink, re-attempt in the area you were trying until the gun blinks, positioning of the gun might have to change to register a shot, so keep trying.
Now if you have a horizontal setup: || (Do the following shots in order from top to bottom)
-Shoot at the top 3 light bulbs of the top-left sensor bar (aim for the middle bulb for best accuracy).
-Shoot the center of the screen
-Shoot the top-left corner of the screen
-Shoot the top-right corner of the screen
-Shoot the bottom-right corner of the screen
-Shoot the bottom-left corner of the screen
Now if you have a vertical setup: = (Do the following shots in order from top to bottom)
-Shoot at the top 3 light bulbs of the top-right on the sensor bar on top of the screen (aim for the middle bulb for best accuracy).
-Shoot the center of the screen
-Shoot the top-left corner of the screen
-Shoot the top-right corner of the screen
-Shoot the bottom-right corner of the screen
-Shoot the bottom-left corner of the screen
Now the gun SHOULD be sighted in to the mouse, if you left the laser on you will notice that the gun is not as fast the mouse, this will not be a problem, simply turn off the laser to not see the speed difference and the mouse to gun cursor will be ok.
Now the somewhat difficult part, setting up MAMEUI32 (regular MAME is too complicated for me). Make sure you get the newest version, do a search in yahoo for: MAMEUI32+v.124u1+download. Let's run a sample lightgun game, so "get" a copy of "Zombie Raid" and a copy of the "Neo Geo" bios, then place the .zip files in the "roms" folder of MAMEUI32. Now start up MAMEUI32, click the "Available" tab on the left-side of the program, look for Zombie Raid. Right-Click the game and click properties. Go to controller mapping, then look for the "lightgun" tab and change it from keyboard to lightgun by selecting the option in the drop-down menu. Now close the properties, double-click Zombie Raid in the Available section. When the game starts press the letters: OK and then press those letters again. Now you should see a screen that says: "Winners Don't Do Drugs", press F2 and F3 quickly to bring up service mode. Now keep clicking the mouse until you get down to the last option, and press "1" on the keyboard. Then press 1 again, now you should be at a calibration screen. For player 1, move the mouse into each corner and click. Now for player 2 use the movement of the "RDFG" keys, and on each corner press "A" on the keyboard to calibrate. Once you are done, a screen will come up saying: "Good Luck To You", then the program sends you back to the main menu. Now press F2, and the game will start. The LCD Topgun should be correctly sighted in, so kick some zombie

and slap yourself on the back for doing such a fine job at calibrating your gun.