OK, anyone who can help.

I've got steinberg cubasis VST 5 and I want to use the piano downlaod off your site but can't get it to read even when I put it in the VST folder. Should I be doing something else with it? All my other VSTs are .dll files. Any tips??

If your files end with .rar (as you suggested in your title), you have to "UnRar" theses files first with some decompacting software
.rar files are compressed files

HTH