My windows wallet had the fork problem also.
After staking for a week, it crashed, (runaway exception, I have logs if needed), then the next time I sent coins they did not arrive.
Here is what I did to fix it.
Backup wallet
Update peers in supercoin.conf using current page 1 addnodes, delete old peers.dat, restart.
Check current block in client, look under Help\DebugWindow, and check the Information tab for Current Number of Blocks.
If it is higher than
https://chainz.cryptoid.info/super/, then you are forked.
Delete blockchain, and resync.
After resyncing the transaction is conflicted, and I have my coins back.