I have iDeneb and XxX Leopard .iso files

My primary computer is an iMac.... and i have a netbook (Acer D-150) that came with windows xp ...but now i have Jolicloud which is probably causing this .

whenever i use "Disk Utility" to restore the image to my "Mac Journaled" USB drive.... and installed PC EFI and even tried Chameleon ....

after all this i can't boot up!!... is there a step that i'm missing.. please can someone help me?