That's what its sister program, Photoshop Elements, is for, Bob.
One has very limited photo editing capabilities in PrE. A much better program would be PhotoshopElements.
In PrE for the Scale, you can apply the fixed Effect>Motion.Scale, by Selecting the still and choosing Edit Effect. It can also be used if you uncheck Scale Proportionally, and just Scale up the Width.
You will get higher quality, however, if you do this work in an image editor, like PSE.
Photo editing in PE 7.
Thanks for the help and advice.