Cannot install Windows 7 via Bootcamp?

Hey Guys.

I have a mid 2009 Mac Book Pro. I use OSX Lion, and ran into issues with program compatability with older mac Programs. I then decided to install Windows 7 through Boot Camp so that I can run my older apps, and ran into a problem in the 1/4 of the Windows installer, which says "CD/DVD Driver not detected, please insert a floppy, CD or DVD, or USB with the driver to continue."

I've searched Google and every source on the internet, and I cannot find an alternative to get windows 7 to work.

I have however gotten Windows XP to install, but I cannot use the new bootcamp since it doesn't support XP (Of couse... -.- ) . How can I get my Windows 7 Installation to work.

OR

How can I get the correct drivers to manually install them to get XP working on my mac?