Hi i've been trying to install snow leopard on my pc for 3 weeks now and it doesnt work. i've tried iatkosv7, iatkos s3 v2, and hazard 10.6.1-10.6.1 but everytime i put the dvd in and try and boot it i get loading darwin and then it just reboots and keeps rebooting. i've tried -v,-f,-legacy, cpus=2,cpus=1 and busratio=21 and a bunch of combination but nothing works. so please try and help me

specs:
AMD Athlon X2 GL-60 1.90ghz
2 GB Ram
Graphics: 256MB Nvidia GeForce 8200M G
i am trying to get it to dual boot with windows 7 ultimate

Please help me thanks