You can choose either you continue using the website or not based on few reviews of the members : http://bittrust.org/btcsx , SCAM ACCUSATION FROM REDDIT : http://www.reddit.com/r/Bitcoin/comments/2175ct/feedback_dont_use_btcsx_scamtrap/ and you can see here too : https://bitcointalksearch.org/topic/btcsx-experience-383246
I personally wouldn't take risks to use it based on the three links . Remember : never store your bitcoins on a exchange website it can go hacked or turn to a SCAM while they have enough money and walk away , withraw whenever you can
BTC.sx is a trading platform and not an exchange. Besides, every sites got at least one or two complaints from users.