Need help with Code

I'm trying to impliment Money Management into one of the EA's that I'm testing. For instance, I want to trade 1 mini lot per $1000 in Account Free Margin.

Can someone help?

Take a look at the account information functions of MQL4 at http://docs.mql4.com/account

AccountFreeMargin is the function you need to get the current free margin. You might also look at AccountFreeMarginCheck.