FS2004 and Empire Earth 2 are the main two problems for me. FS2004 in particular had the curious and annoying effect of recognising itself as FSX - i.e. I'd put the fsx disc in, click the fsx logo and the fs9 ( :-?) splash screen popped up, followed by some error messages stating, if I remember right, that the scenery.cfg file was missing (or damaged, can't remember). I found this odd because I had not touched the cfg file or any other of the fs9 files since I'd installed it and it failed to run (more on that later). This has necessitated a complete reinstall of fsx and a long-winded manual removal of fs9 (it simply refused to buggar off when I started the automatic install process).
Before this, both EE2 and FS2004 had seemingly installed, had got to their respective splash screens and then gave me error messages resulting in the games failing to run. Repeating the process merely got the same results.
I have read that vista is unable to run many older bits of software without suitable drivers. Is this my problem and if it is, where can I get drivers for the two games I mentioned - or is it not that simple? Bear in mind please any advice will probably need to be given in detail and without using computer jargon because I have little knowledge at this level of computing (or almost any level for that matter). For example, I know in essence (and only in essence) what drivers do but I haven't a clue as to how they work, how you get them onto your system (install or otherwise?) and what they will solve/won't solve.
Any help would be very much appreciated - as a sidenote, both games worked absolutely fine on my old, not-designed-for-gaming pc which ran xp.
P.S. My version of vista is home premium. It came pre-installed on the pc, which is a dell xps-420.