Please help me out!

Hi, im pretty new at this dc-burning things. I am having SO huge problems! You see, i have found a great hotline server to download the games from, but do they work? No!.. First of all, i downloaded snow surfers. I tried to unzip the files, but winzip said that it was a invalid file to inflate. So in panic, i tried doing it with pkunzip (dosprogram you know) and it worked! Yes, now all i have to do is burn (i thought). But oh, was i wrong. I read in a "How to burn dc games" document that I had to use ISOBuster and get all the files out of the BIN, so i did that. But once again, another fiel error... So i gave up on that game and downloaded Crazy Taxi! And it was the same zip file problem as before. But with pkunzip it worked. So i had all the files (a lots of bin and shit). I didnt care about extracting all those bin files, becouse i understood that they where supposed to be like they were. I burned the cd with nero. THen I booted my DC with Utopia disc, then I put the Crazy Taxi cd in. And YES! a crazy taxi cd was spinning !. I came into the menus and everything to! But when i was going to start the game, the screen got black and nothing happened. I have tried 3 more games after that (that makes it 5 games (and a lots of cds)).. I did make that stupid dummy file and everything was right!.. But Oh No! It Just Wont Work! ARGH!... So i guess what im wondering is.. What should i do. Is it necceserry to have a dummy file? What should i think about when doing it? Is the zip files supposed to be like that? Do i have to extract the bigass BIN file..?... What more shall i think about?.. PLease, Please help me....