Attached Link: http://www.daz3d.com/support/tutorial/printable.php?id=706

This is a nifty Free Stuff item, thats been using that .PICT format for years. .PICT(91x91 pixels) is all you need, it then converts whatever you have saved on your .PICT file to a .rsr in a second! I found it super becasue I could start using very large renders/composites as .RSRs by saving .PICTs right from Photoshop! I do'nt see a link right to this utilities download, but here is atutorial at DAZ. If you need a copy of the program I can look harder, or just e-mail you a copy of mine! = )