Seriously, you're not paying anything for the software so cut W1zzard a bit of slack.
I'm on Vista x64 and I'm getting by just fine using 0.27 Beta 1 and pressing F8 on boot. It's an annoyance but when you consider you're not paying a penny for the software, it's something you just have to live with.
Using rivatuner with signed drivers atm, it's nice not to have to remember to hit F8 everytime, and then having to disable/enable drivers for ages to get it to work. Plus I have a HD2900, so support is a bit wonky on this release anyways But AtiTool > Rivatuner, so eagerly awaiting the new beta release, keep up the good work W1zzard!