do you have to get this edition to run properly on an athlon 64 processor or to get the full potential out of the processor.
I have also heard bad things about this edition regarding gliches, is this true.
and. Do most games run on this edition
Mostly, the bad things are being said by people who don't know what they are talking about.
It is true that there are no 64bit drivers for many devices. However, all of the major motherboard makers have 64bit drivers for all of the devices builtin the motherboards, including NIC and audio devices.
All of the major motherboard chipset makers have 64bit drivers, including Intel, VIA, SiS, ATI, and Nvidia.
If you have a no name pc part, then there may be no 64bit drivers, unless the device uses a chip by a manufacturer that has 64bit drivers. For example, Ralink is a maker of chips for wifi cards, and has 64bit drivers for its chips. Linksys uses Ralink chips in it version 4 of the Wireless-G USB adapter, and, using Ralink's 64bit drivers, it works in Windows x64. Linksys itself doesn't have 64bit drivers for any of its wifi products.
So, check around for 64bit driver availability. Don't believe the Know Nothings.
As for pc games, most will run very well in Windows x64, even though most are 32bit software. Far Cry and HalfLife2 now have 64bit versions that run very well in Win x64.
There're few pc games that won't run on Win x64.