using time machine to transfer files from mac to mac

i just bought the new iMac 27inch. My previous Mac was Mac OSX Version 10.6.8. I want to transfer files from my old mac to my new mac. I learned Migration Assistant does not support this transfer because my old Mac is too old.

I want to transfer photos that are on my old mac --- such as my itunes, photos that are in iPhoto and CS 5.0, and a few other files on desk top and in documents.

What do i do? 🙂