Windows 7 - Adobe CS3 wont install on windows 7 beyond shared compo

well i just got myself a new laptop and wanted to start working asap on my editing and graphic presentations for my showreel

but their seems to be some trouble as when i try installing the master collection the suite installs all the shared components and later the setup shows error in installing components for all the major softwares like Photoshop, Adobe Premiere Pro and After effects - thou it installs dreamweaver, soundbooth perfectly

i am confused as to what is going wrong over here

also read that CS3 and CS4 arent supporting windows 7 - but if so how come the shared components get installed and the softwares dont ?

is there any way to solve this problem or do i have no other option than to go for a dual boot system on my laptop by installing Windows XP as well - as these softwares worked just fine on my XP based PC

pls help