So after the mother board on my PC died while QB was running i managed to get the hard drive to run on another PC, but the only file missing was my company file (.qbw) i can see the (.tlg) file. i have a backup from august (yes i know i should backup more often

Running Quickbooks 09-10. I read that the .tlg file is the information between now and the last back.
So i have no idea where the QBW file went

I guess its gone for good?
Is there a way to retentive the files between last backup and now using the .tlg file and my last backup?