Quote: "I've tried installing it on my current desktop, which runs XP SP2 and is about 6 years old. It didn't work, even though my system met the requirements"
How did it not work when you tried to install it, where in the process did it fail ? Did it get through to actually installing GDK itself, or did it fail on Visual Studio or DirectX SDK installs ?
GDK has a "delicate" (understatement I know lol) installer that requires things to be done in a specific order and for other system assets to be in certain places or it will fail, it really isnt hard though to set it up manually so that isnt a big deal.
Just a quick rundown on the basic order of isntallation for GDK :
1 - Install Visual Studio Express 2008 , making sure that all of it's pre-requisies are installed first.
2 - Run Visual Studio Express 2008 ONCE BEFORE you install anything else. It has to setup a bunch of environment variables that the subsequent packages require to complete their own installs.
3 - Install DirectX SDK August 2007, MUST be the 2007 SDK as GDK relies on now-deprecated libs for its networking(once you get it all working, you can use upto march09 directX sdk with some wrangling and dummy libraries - later SDK's than march09 remove a number of deprecated features that GDK relies on to operate)
4 - Install DarkGDK itself.
The above is for the downloadable installer version of GDK, which is not the latest version. The latest version is 7.4 and is available from a sticky at the top of the GDK forum, though it's installation is a little different and it is spread out in a couple of archives, as such its probably best to leave any updates until you get comfortable using the product.
Hope this helps some
If it ain't broke.... DONT FIX IT !!!