InfoPath Dev

I was trying to attach some screen shots of the form but it doesn't seem to be working.  So lets see if I can give a little more detail.  I have a repating table (group name approval) that (for what we need in this case) looks like this: Routed To: ...

I am trying to set an approvedBy text field with values of a repeating table field called approvalName.  I was able to do this perfectly with the following formula: eval(eval(approval, 'concat(my:approvalName, ", ")'), "..")  My issue is that there are names in the approvalName repeating table field ...