The block chain fork has been fixed along with some other Proof of Burn block discrepancies.
Update the wallet now to get on the correct block chain fork.
You must update the wallet before block 10500 for Proof of Burn block discrepancy fixes.
Source Code: https://github.com/slimcoin/slimcoin
Binaries: https://github.com/slimcoin/slicmoin-executable
After you update the wallet, add the addnodes found on the OP page. Delete both blkindex.dat and blk0001.dat. Start the wallet up the first time with the -rescan option.
Updated my Mac build with latest code: https://www.dropbox.com/s/b5irhas4xqvh2pb/Slimcoin-Qt-0.3.0.0-Mac.zip