recovering photos

Hi all
I had to have a new hard drive installed on my iMac as it was recalled by apple, I backed up my entire system through time machine onto an external drive. My question is how do I get my photos back into iPhoto without installing everything back onto my mac.
Any help would be great thanks.

Here's the Apple kb article for restoring a previous TM backup.

iPhoto '11: Restoring from Time Machine with iPhoto '11 (9.2 or later) and OS X Lion 10.7.2 (or later)

Thanks very much for the info