Thanks for your answers guys.
I downloaded and installed GTA4 on Steam late last night, and installed LCPDFR, ELS 8.0 and a couple of vehicle mods.
I must say, when it's working it is fantastic fun, just love patrolling and getting into chases.
Sadly I am getting a lot of crashes to desktop when I just get the standard GTA4 has stopped working message or a complete freeze, can hear music but can't do a darn thing apart from a hard reset.
Not to worry to much though, hopefully a few days surfing these forums may just supply the answers I need to get her running without crashing. But damn, what a mod. It really is all I dreamt it would be. :)
cowboy10uk