copied cds wont work, please help!

[Mr.Mondo]

I just got a beautiful new dell 1Ghz with all the bells and whistles running windows ME and I need help buring cds. It came with Adaptec CD creator 4 but that just wasted cds, if they had copy protection it would write a little then throw an error message. Now I have Nero, it writes the whole cd, but the autorun on the copied cd doesnt work, and all the exe files give me a "not a valid win32 application" error when I try to open them. I followed the instructions on gamecopyworld.com and still ended up with a worthless cd. my cd burner is a LG CD-RW CED-8080B . I really need some help here, I dont know too much about cd burners cause this is my first. The read drive is a Lite-On LTN483S 48x. My system will copy games like Diablo and Starcraft but I have tried and Failed at Red Alert 2 (both CDs), Delta Force Landwarrior, Delta Force and a few others and its getting kinda expensive so please help.