https://www.dropbox.com/s/21yccfxu0njdxid/seedcoin-qt.zip?dl=0New wallet should have no trouble syncing. Please delete everything in %appdata%/seedcoin except for your wallet.dat and sync up.
Github is updated with the new code. Please EVERYONE update. This code includes a fix that stops old blocks from being invalidated - but for those of you on the correct chain otherwise has no effect moving forward.
I know what happened, this issue can't happen again. Will explain in a later post.