hm, that's an altcoin... It might be best if you would close the topic, and re-ask your question in the vertcoin ann thread, that way the vertcoin dev's could help you out.
After googeling for a bit, i don't think vertcoin core is HD, this means that i don't think it's a deterministic wallet, so i don't know what you have saved, but i doubt it's a seed...
I can be wrong tough, that's why it might be wise to re-ask your question in the vertcoin ann thread.
Using recuva on your old harddisk is still a good thing to try, wether i'm wrong about the fact that the wallet is not deterministic or not... But please do understand that the more you use the harddisk, the smaller the chance recuva will be able to recover your wallet.dat!
Just a last couple of questsion about your seed:
- when were you shown the seed? During the first wallet installation, or did you have to take extra steps?
- how many words does the seed consist of?
- if it's just one word, what's the seed's lenght, and which letter does it start with? (tip: if it's one word, it's not a seed)