500$ is very little for forex, not only for a EA like this that use multiple orders and lot increment...
Having too big spacing is as worse as having too tight.
It seem AutoSpacing is doing pretty well up to now, set it as TF 60, length at 10
and play with indicators.
This EA is not "holy grail", so it must be tunned to match actual conditions.
This mean will not work on all periods.
If you find settings for early 2007 then will not work for 2008.
As a side note, I saw EAs sold on internet 10 times worse than this one, so...