I think you may misunderstand how an open source project works. Suggested reading: http://tikiwiki.org/Model#Why_don_t_you_fix_improve_the_existing_features_instead_of_adding_new_ones_
I suggest you be appreciative of people trying to help. No one owes you anything.
If you found a bug, just report it, after checking if it's already there.
Then, try to fix it. If you can't fix yourself, perhaps you should ask people in your community if they can help.
It's unlikely that fixes will be made on Tiki4. However, if you can demonstrate this issue on a Tiki5 site, maybe someone will fix it. You can get latest 5.x from Daily Build.