Tiger to Leopard Question,Please!

Ok, now I've tried searching, but yet to come up with anything.

Please excuse my ignorance if this has been asked before.

I had a MBP CD2.0GHz that was on Tiger, I had all the basics with it, iPhoto, iMovie, iDVD, Garage Band. When I upgraded to Leopard, all of these are gone. Is it that they want you to buy the new iLife 08 with Leopard to work or is there any way to get my old installations of the software back on Leopard? I've tried inserting the Install DVD 1 and I can't figure it out. I just want iMovie, iDVD, etc back so I can continue working on projects. Am I screwed into buying iLife 08?

Can someone help me out???
Thanks,
Aaron

if you have the orginal install disc for the MBP your using then reboot from the disc holding the "C" key then click install "Bundled Software" and then click on customize and choose only ilife products.

After it installs reboot then run Software Update and install them for ilife 06.