judeohiare, welcome to the forum!
Prior to the switch, did you hunt down the drivers for your computer? There's a 50/50 chance that if the computer was built to run Home Basic, it may not have the hardware to support Aero. But still, the screen resolution can be fixed.
You need first to find & download all of the drivers that you can find for it. Being that it's a 64 bit computer, you may have some problems with finding 32 bit drivers, but with some searching, you should be able to find most of them.
Have you ran Windows Update yet? It's not the best source for drivers, but you need to start somewhere. This may at least make the computer functionable enough to find the latest ones.
Best of Luck,
Cat