In fact they already did. They must be regretting that today sorely

Can somebody please help me, or advice me to whom to contact for below problem:
Yesterday I have sent from wallet 10 MAX to my account at Cryptsy - now, nearly 24 hours later, into the wallet transactions there are 0 confirmations and the coins are not into Cryptsy account of course!
Transaction ID is 8a839e69c45074a38748cd16a6ce00f5fee343a93e7244c3e1647b5849172bff-000
What can be the reason??? The wallet is latest version, synchronized  and makes 8 connections.
I can send screen shots if this can be helpful.
Please help me or at least advice to whom to contact!
Thanks

Most probably you are running not the latest version of wallet after all. If it is not the case, it is safe to restart the wallet and retry sending as soon as the transaction did not make it to the blockchain: http://max.cryptoexplore.com/search/?s=8a839e69c45074a38748cd16a6ce00f5fee343a93e7244c3e1647b5849172bff

Yes, but first it makes sense to start the wallet with '-rescan' commandline switch so it 'forgets' the unsuccessful transaction and recovers its coins.

It only works as a commandline switch I believe. Here is how to do that for Bitcoin, please adjust for Maxcoin where needed:

Thanks Reorder - it is good to have people like you here
P.S. I am running Windows 8 - but still what you describe works as well. I have now 30+ confirmations.

You missed to point out that Maxcoin uses a different signing curve than any other coins, thus breaking compatibility with a lot of custom wallets.

Bitcoin (and almost every other altcoin) uses elliptic curve SECP256K1 and maxcoin uses SECP256R1

EDIT: Also, Keccak is anything but ASIC resistant, there are already plentiful FPGA implementations of Keccak and even Intel is including SHA3 optimized instructions on their next gen cores.

GOOD LUCK!