It seems as though in Version 7 you can only have 3 seperate indicators in one chart.  When you add an indicator, it asked if you want to put it on the Top, Middle or Bottom.  If you try to add a 4th indicator, it combines it with any already in those spots.  Is there a way to add a seperate 4th indicator?

The charts in TC2000 version 7 are always composed of 3 panes and this cannot be changed. You could use the Layout feature to display multiple charts however.

View multiple symbols or multiple views of the same symbol using Layouts

You can have as many panes as you want in a chart in TC2000 version 12.3.