Since you registered, did you download the PC-Link software and freeloader? If not, follow the instructions on the Game Park site and do that.
Then, install the PC-Link software on your PC and plug the USB cable into your PC and GP32. Put your SMC in the GP32 and turn it on. Use "select" to get to PC link on your GP32, press "Start". Launch the PC-Link software on your software. Go to "format" and format your card. Go to "install" and install your freeloader software.
Now you are free to download emulators and other stuff from this site and put it on your card. Most stuff goes in the GPMM directory. Most of the emulators have a readme file.
You also may want to purchase the MoviePark software (~$5.80USD) to play divx videos.
WE NEED A FAQ/NEWBIE GUIDE!