Purchase Requisition Approver Table

Good day. My company is trying to create a Discoverer report in which we can pull in the Preparer Name and the Approver(s) Name of a purchase requisition. I found the Preparer Name field in the Requisitions folder of the Purchasing view. However, I can not locate the Approver Name field. Can anyone tell me if this is also in the Requisitions folder (and just hidden from the provided items) or if it can be found in another folder?

Example

Requisition#    Date     Preparer          Approver

123                4/4/12    Joe Smith        Nancy Jones

124                4/4/12    Joe Smith        Nancy Jones

125                4/5/12    Jane Doe        Roger Smith

Thanks,

Erik