This is a common bug in VC:MP, happens when someone in the server is put out of a vehicle in an unexpected way. Currently there is no way to prevent this from happening.

Make sure you don't have any other mods installed. Check your MSS folder in Vice City folder - there may only be two files with an .flt extension (reverb3 and vc-mp).

You should also post the crash log.

VC:MP tends to do that sometimes... no known solution to it atm.

I think this was done intentionally, since it's the build mode - when you put something somewhere, you expect it to stay there, not to fall or roll anywhere.

It doesn't work with the steam version, because the structure of the steam version is alot different.

Server browser should be the only stable thing.

I guess those are not bugs, I think they're caused by Vista's megaweird """features""". You could try running it as administrator. Under Vista many different programs often crash because they don't have the administrator privileges or something. Try right-click and "Run as administrator".

Frame limiter off makes the game kinda unfair. So I think I should patch it to be always on (VC:MP toggles it on only on startup atm).