Pledge information appears on the main Transactions Grid, the Pledges Grid and in those tabs in the constituent's record.

From the main Transaction or Pledges Grid, you can use the search box or filters to find the constituent. Click on the row for the constituent, then the View/Edit button and then Transactions. 

You can also go to the constituent's profile by clicking on their last name. This will bring you to the constituent’s record, you can then click on their Pledges Tab to see all of the information.