SHA256 instead of MD5 :: Possible?

[nhawk]

People need to remember that MD5 is a one way hash, it can't be decrypted into plain text.

MD5 was found to be insecure for things like security certificates and the like because of the possibility of a collision (duplicate MD5 hashes). It had nothing to do with password storage. Or at least I never saw anything about passwords and MD5 except to warn that the MD5 hash needs to be properly salted.

There are only two ways someone can get the password for vB. One is by brute force. Or more commonly known as guessing until the password guessed equals the MD5 hash. The other, more common way is for someone to use the same password on multiple sites, the clear text password is stolen and then used to access other sites.