Were you successful in importing your private address?
If you were, it may be that your wallet is not in sync. At the console, type "info " and type enter. Look out for "blockchain_head_block_age". It should be a few seconds only. This means the blockchain is in sync. If you still cannot find your balance, at the console type "wallet_rescan_blockchain ". This rescanning process takes some time. You can check progress with command "info ".
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