change operator c331t

I've got some c331t's with the latest version of cingulars software & flex loaded into them. I have a .gif file that I can use PST to load a "generic" logo into the older version, but the same file fails when I try it on this newer flex.

Motorola Online only has cingular software available for this phone (no cellstar), and the c332t software doesn't seem to be compatible.

I just want to change the operator logo, so I can move these phones to centennial and cellone networks.

Does anyone have a non-motorola app they're using for changing operator logos?