You can find the account summary in the right side of the web trader, which contains some details belongs to your account summary (Balance, Floating profit/ loss, Credit, Equity, Used Margin, Margin Level, Free Margin).
Balance Real amount of money a client has in his account.
Floating P/L The profit or loss the client gains or loses respectively, for all current opened positions.
Credit An amount of money put to the account of a certain client in order to be paid later (like a debt).
Used Margin Called also the Margin Requirement, which is the amount of money that can client afford in his account to buy 1 lot of a certain currency, as example... which takes (-1000) 0ff for each 1 lot, means 100$ for each 0.1 lot.
Margin Level This equal to (Equity/Margin Req.) * 100% (the bigger number, the better), it is the most important value that both the client and the market maker should keep on watching, because, depending on its value, it can be decided how many lots the client can buy with the money left with him/her, and if the account is close to Liquidation point. If it was 100.00% or more, the account is on the safe side, if it was less, then there is a danger of liquidation to happen soon.
Under the account summary area you will also find the accounts tree tab, and by selecting it you will view you account, and if you have more than one account then you will be able to select the desired account to trade with.