I just bought the PhpED for Windows and I've found a little thing. I'm debugging a piece of code that should be run in Windows and Linux. This code contains in the first line the linux shell name in this form:

#!/usr/bin/php -q

and after that the normal PHP code begins.

In this first php page everything works fine with the debug, BUT when you go to a different page (a function in a diferent .php file) the debugger visual indicator gets lost, the line you are debugging is not the line signaled in blue by the debugger, it's a line ahead. If you go to the first page and delete the first line (#!/usr/bin/php -q), which is for linux of course, the debugger works perfectly in all pages. Maybe you could fix this in future revisions.

Congratulations for such a nice PHP editor !

It's a known bug in PHP itself. It screws up its line numbering when #! is found in the file beginning.
Try in a newer php version.