Hi hope.
It's a shame you had to reinstall, but sometimes a clean start is maybe a good idea. I'm sometimes tempted to do it myself, and then install only the programs I think I need.
Have you managed to get your browser profile back in place yet?
Once you're sorted, it's time to think about backing up your data, and get your System Drive backed up in case of any future similar problems.
There are a number of good backup programs you can use, but I'll initially link you to the ones I use myself, and if you want any alternatives, just open a new topic and ask.
Both of these are compatible with Vista.
Karens Replicator: (Freeware)
This is great for making regular backups of your personal data, Music, Photos etc.
Macrium Refelect: (Freeware)
This program will make an "Image" of your entire System (C:) Drive. It has a detailed help file explaining what an Image is, and how to use the software. And there's always plenty of folk on here to help.
Once you have everything installed again, your personal data, all the windows updates, all the programs you want, (and there are lots of free ones available on here), you can then use Macrium to make an Image of your C: Drive. This will be a "snapshot" if you like of your drive at that moment in time.
If you ever have an Operating System failure, or a Drive failure, or something similar to what you've just experienced, then you simply "restore" the Image to your C: Drive, and that gives you back everything as it was at the moment you made the Image. All your data, installed programs etc. etc..
You can save this Image to a Partition, an External Hard Drive, or store it on DVDs.
Hope this helps.