Gavin Andresen - 2011-02-08 18:23:52

@s{quotedtext} @s{quotedtext}
Are you missing your wallet.dat file or is it damaged?

If it is missing, then grondilu's advice is the best anybody can do.
If it is damaged, then it might be possible to extract the private keys from it.

This type of thing is why off-site backups are a really good idea...