This is the most buggy wallet I've ever used...
http://dodaj.rs/image/S9pX3How to acesess to this address once you close the wallet?
When I import a private key for it, I'm seeing 0 balance...
Pozz Kizo

well once wallet is closed you cant access it....
You can use that address to point rigs or something, or watch balance on block explorer...
So first check balance of account/address on explorer....
If you have problems with private key -> u can always try to copy/paste wallet.dat from original wallet to new one - as short/fastsolution...