Had to erase and re-install. No longer can find Garageband and other apps. Where can I re-doanload these?

I have had this mac for years. It's one of the very first Macbook Pro models with Intel processor.

It originally came with OS X, and I have the install disk here. I upgraded to Snow Leopard when it came out.

Recently my disk failed and I had to Erase it and do a complete re-install. I assumed Garageband, and iMovie and a few other apps I used semi-regularly would be in the Optional Installs. I started from scratch, installed OS X and then installed Snow Leopard on top of it, installing the "Optional Installs" each time.

No copy of Garageband and these other useful apps appeared.

I can not download Garageband from the Apple site because each time I do it claims I need to have Garageband already installed. But since my complete reinstall did not install those, I'm stuck without these apps I once had.

How can I get these re-installed properly like they once were?

I just want my Macbook Pro back to where it was earlier this week before the disk failed.

Sean Huxter