Turning signal alert into auto trade

Type of alert Pop up alert and on screen/chart

and expert log as follow

1. New order

2014.07.09 14:14:42.494   GBPUSD,M15: Alert: BUY GBPUSD (M15) at 1.71333 , Time 14:45

2. TP/SL

2014.07.09 14:14:42.494    GBPUSD,M15: Alert: TP Sell GBPUSD (M15) at 1.70771 , Time 11:40,
or
2014.07.09 14:14:41.683    EURUSD,M15: Alert: EXIT EURUSD (M15) AT 1.35841 , Time 04:47


or
2014.07.09 14:14:41.418     EURJPY,M15: Alert: SL Sell EURJPY (M15) at 138.567 , Time 06:48

My principal of this job is:

To auto trade from the alerts through signal in expert log instead of enter or exit them manually. New trade or exit trade must have parameter value for slippage.

One of the developer has made one for me 3 months ago and now the indicator has changed it logic and so the previous auto trade is no longer suitable for the new version.

I need someone to help me to adapt and suit to the latest one.

Previous developer was trandong but he can't make the new version as promised delivery time. I dislike people to promise nothing.

I have the source file mql4. So you can look into it and modify according.