Hi
First, thanks for your efforts in trying to resolve the issue.
The signarture picture and date/time work in repeating sections. The only thing that was not working was the name in the DisplaySignedBy field: when you add a new item the name for all previous signatures disappears and once the new item is signed the same signed by name then appears for all signatures .
I used the following solution to resolve this issue:
1. In field properties , click on the formula (fx) button for the default value.
2. Double click on title in the formula.
3. Select 'Main' as the primary field.
4. Select 'UserName' under the 'UserInfo' group.
Not sure if this is the best solution. Please let me know if you have any other ideas..
:-)