We only payout in coins that we mine and with the current scrypt hashrates, we're not mining LTC... There were some payouts that went through after the xpool migration, but that it about it.

from the main page:

Non-BTC payouts depend on that coin being mined as your BTC balance is traded internally by our system to your currency of choice. If we have not or are not mining that currency your payouts will be delayed until the pool has mined the blocks for you to get paid. If you notice in the pools status that the currency is red, it means there is not sufficient amount of the currency to pay miner(s). It's recommended to use BTC as any other coin could be removed at anytime and payouts will not occur.