Temporary files

I was working on a 100+ MB file when comp restarted, have no idea why, lost almost 2 hours work, in temporary files folder there's a 1GB file which i believe is the temporary file of the work i was doing. Is it possible to get my work back using temporary files? How can i do that? I tried already to open temp files using Open as (.psd file) but withno success. :(

Please any help is very apreciated!

Tanx in advance

* gulp* ok lost some worktime but started over already, tanx a lot for answering Dave.

I'll start saving a lot more now on, believe me ;)

You live, you learn.

Sounds pretty good but hurts like hell once in a while! Im taking Adobe's Law Of Workflow in consideration already ;)

It turns to be quite frustating to see a 1GB Rover in my Photoshop's Pet Cemetery and not be able to bring him to life tho.

*sings* oh yeah life goes on lalarala ;)