I don't think she appeared in Zoo (the Zoo fans may prove me wrong on this) and certainly not any of the previous groups. Other than Cheerleader I've seen her listed as 'warm up' and 'staging'. No idea what the second position entailed.
Sandy Borne and Tricia Roberts Appreciation Society
Interesting theory Doc, but I'm not so sure. When Paula appeared on the Kenny Everett show at the end of 81 and then the first half of 1982, she had a curl to her hair then. This not unattractive picture shows Paula in action, to the left of the scene.