Can't open BIOS in Vista partition (macbook pro 2009 w/ Snow Leopard)
I'm trying to do a clean install of 64-bit Windows 7 on my 32-bit Vista partition, using an upgrade DVD made in 2009 I bought through my college this year. I've been through the forums and around the internet and understand that since a 32-bit system doesn't recognize this 64-bit upgrade media, I need to boot from the disk. I can't get my computer to do that, however.
I've tried to enter the BIOS settings on the Vista partition, but no command keys will let me... all that the function keys have let me do is get to the "safe mode" selection screen. Command+option+o+f and the other similar combinations also haven't worked at all.
Is the only other option to go buy a 32-bit upgrade CD or a full W7 DVD altogether? So far I've gotten the gist that it should be possible with the DVD I have if I could only get it to boot from the disk...
Thanks for your help, whoever helps me out!
MacBook Pro, Windows Vista