adjustment of metatrader indicator

I wonder if anybody could help. My colleague has tried to program up Pascal Willeim's effective volume indicator (from Alexander Eldar's 'Come into My Trading Room'). Basically what it does is to split the volume into first effective volume, and then split between the large volume and the small volume. I have included 2 pdfs of a description of the indicator. The principal of the indicator is that it shows when large players are building up, whilst small players 'don't have a clue'. this could lead to an explosion in the price when the dam bursts. Most of the work is done in the attached mq4 file , but the large volume and small volume should be seperate lines that are rolling over a defined period of time. At the moment, the indicator shows the effective volume and it changes to green when this effective volume is originated by the large players, but I want to see two separate lines of small and large volume (which together should equal the effective volume) on the same chart so that I can see when they are diverging away from each other. As this is FX (rather than stocks, on which this indicator is designed), it will be different to the attached pdfs as there are not start and stop times in the market - hence we need to add a variable period that can be set. SO TO SUMMARISE, is there anybody who could make a small adjustment to this indicator to show the large and small lines as per the pdf and add an adjustable period for the indicator. Please note there are two conditions to successful completion of this project: 1) The indicator should work as described in the pdfs. If the existing code is wrong, it will need to be changed so that the end result is a workable indicator. 2) The variables within the indicator must be usable in fxgenerator. I have enclosed the appropriate pages from the manual for fxgenerator - this describes how the indicator needs to be set up to be a variable value which can be changed in fxgenerator. If in doubt, please download the trial version of fxgenerator to check it works (by the way it is an awesome program for rapid metatrader development anyway). Obviously this indicator needs to work on any time frame or currency it is dropped onto. This project will be awarded to the programmer who can outline his skills either as a reply or on his/her profile. A 'I can do it' response with no further information will not be considered. Please come back to me if you have any questions.