It looks like your account was pruned in January 2012.  After the pool discontinued proportional and started PPS in 2011, there were 3 pruning events:

1) January 2012:  Accounts which had not logged in since the change to PPS and did not have the minimum withdrawable balance (0.01 at the time) were pruned.
2) October 2012:  Accounts which had not logged in since the change to PPS (1 year prior) were pruned.
3) June 2013:  Accounts which were created before May 2013 but had 0 mining activity in their history were removed (over half the registered accounts were unused).

The balances and account details for the 1st and 2nd pruning events were preserved including their unpaid balances and are available for restoration.  I can restore your account (assuming its the same as your forum name), though the balance is under 0.01 (~0.0026 to be exact), which is subject to a 0.0005 fee if you want to withdraw it (0.0021 to your wallet).

Send an email to support@btcguild.com if you want to have the account restored.