Go into the administrator account, and check in control panel to see if you can add all administrator priviliges to your user account. I did it to mine, I forgot how though exactly. It shouldn't be hard, just google it.
ok to run a program as administator: right click on the icon>properties>compatibility tab Look to the bottom of that and you will see a check box and beside it will say "run this program as an administrator" I recommend running these games windows xp sp2 mode too. Next, if you want to turn off UAC Go Start>search for uac>click it and you will see the options and then select the appropriate option to turn it off. I would tell you but win 7 has a little difference in user interface compared with vista, but those instructions should work, nothing hard. Or just do a quick google, "how to turn off uac on windows vista. Hope this helped.