hi, i am trying to edit my stw bifs, but i am having problems.

Basically, when i open to edit, i can edit it using the bif reader tool. However, when i extract it to use on paint, and then edit it and import it back, the changes do not get saved once i save it.

When i re-open it up it is just back to normal.

Can anyone help. I have version 0.1.0.3. is this the most recent??? This would really help, thanks.