Can't get my sims 2 to work on my computer :(

Today I downloaded sims 2 double deluxe , seasons, and university all on my toshiba windows 7 computer. If I put in the sims university disc it'll show the screen that has the logo and then nothing, if I put in seasons it'll say I need to make sure sims seasons is in the drive and press ok. I've tried running them as administrator, I've changed all three of their compatibility modes to windows xp service pack 3 because someone on a forum suggested that. I really want to play this game because my little cousin is coming over soon and we were looking forward to playing them! Any help? I didn't pirate them or anything, they're from a couple years ago and they did work on my old laptop and I think that was vista

Can you tell me what your system specs are?

As far as I remember you need to install the "SecuRom" drivers manually (and/or with administrator rights).
It is the security "feature" of the Sims 2 game(s).
Than it should run again smoothly.