Sorry for the confusion.  Will all the changes I may have created a jumbled mess of information in the OP.  I edited it to be a bit more clean now.

After you sent to the "invalid address" did you coins stay in your wallet?  If they were on Polo they should have and if they aren't in there open a ticket with them and they should be able to put your coins back in your account.

Also all the exchanges have been changed over so the site only needs to be used if you have coins in a wallet or maybe a pool/other random site (ie gambling) that wasn't updated.