I don't have any problems at all with Vista both 32bit and 64bit running WinUAE.I have an HP 9235NR laptop and it works great.. PM me here and I'll help you work through the problems.
Some things to check:
1) running the winuae program as administrator (if you access the window file system to store amiga files you'll need to do this)as amiga software writing to files might see it as a violation.
2) can you send me your winUAE settings?
This works beautifully on my machine so please feel free to message me and we'll work on getting this working for you.
