Help!!! 99 Malibu is a bag of....

OK I just bought this car about a month ago. Since then I have replaced 3 tires, fan blower motor, muffler and tailpipe. Also since I have bought it the Drivers Window won't go down anymore and that sucks seeing as I am a smoker.

So I get the car back from the shop this past Monday from getting the tires and fan and muffler done and as I am driving home the F***IN ABS Light Comes on!!! I almost shat myself right there at the red light.

So then I get home and Google it and find out it happened to someone else right after getting thier Fan Motor fixed!!! So WTF is going on here? And does it have something to do with my Driver Window not working?

I am a huge moron when it comes to cars. Computers OK, cars not OK. And I think Riki Tiki Tavi at the garage is getting wise to me and running my bill up but that's another story....

Any help would be much appreciated!