IndustrialAeon

Actually, they've got several Vista-specific hotfix packs. Go to http://www.ryanvm.net/forum/, click on "Other Update Packs", select "Windows Vista" and there you go! I am using Fox's Vista vLite Update Integration Pack with Vista Business Edition. Works like a charm!

I've been getting my hotfix packs from RyanVM's site, and I believe this is exactly what you want. RyanVM.net Forums