Webjal ver .03 hasnt had all the bugs worked out of it yet. It has certain problems still like: Cutting off ringtones after 5 seconds, and not installing wallpapers properly.
Myjal however has worked perfectly for me.
You cant get rid of ringers on your cell that are factory installed like ringers 1-9 on the i95. Any midi's or wav's or mp3's can be deleted by simply highlighting the ring you dont want, press menu, then delete.
Hope that helped.
Chris