You can download de latest version of PHP Bug Lost at Downloads section.
PBL (aka PHP Bug Lost), is a php console (run in browser), one-file script (easy install) for debugging and monitoring your Website.
You can send log messages from your php code, like FirePHP, using simple functions like bl_error('This is an error'), log querys using bl_query("SELECT * ...") or vars usign bl_var($myVar). Also you can messure memory usage (total memory and included files and vars) and load times. See the docs for complete info.
PBL not is a step by step debugger like xDebug, is based on other programs like FirePHP and especially PHP Quick Profiler.
Please, use the ticket system or Discussion Forum for support and help.