Aly:
I'm so sorry this has happened to you You work so hard, it isn't fair. Those people who spend their time creating virus should be incarcerated together with the ones that abuse animals. Put them away and throw the key
Besides backing up your files and getting anti-virus software, have you though about buying something like "NetBarrier"? Is supposed to be one of the best programs to stop intruders into your computer. I use it in a Power Mac but I'm sure is also developed for PCs and it's not very expensive.
Give big hugs and kisses to the babies.
Love, Alicia