Camrec Video Edits

I have 4 Camtasia camrec files that run about 10 minutes in total time. I need a Camtasia whiz to blur out specific areas of each camrec file such as account details for CPA networks and other personal information that I don't want publicly viewable in the final video. These blurs will occur in 1 or 2 spots on the screen pretty much throughout the length of each file, so there is maybe 8-9 minutes of blurring. In addition to doing this, I'd like the files to be compiled into one camtasia project file as the final result. I'll upload my camrec files for winning bidder. Thanks!