who do i alert about blender bugs

http://uploader.polorix.net//files/355/bender%20blunder.jpg
in 2.42 and 2.43 in windows xp media edition it wont allow text to follow the curve.
i dd not write the file.
the one who did says it works on his computer.

You alert developers using blender’s bugtracker (you have to register):

http://projects.blender.org/tracker/?group_id=9&atid=125

But please read these guidelines first, to ease the coders’ job:

http://www.blender.org/development/report-a-bug/