Ha,Syndi,you can use your new serger to make ruffles !
I didn't see your post,before I looked for a video.
All you need to do is to adjust the differential feed and the tensions.Here
is a video,(not your Brother model serger and not the best quality or sound video,but it will give you an idea on how to make ruffles on a serger).The principal on how to use a serger to make ruffles is the same.All one has to do is sew slower on the serger than normal !
(I wish getting something in my computer back to do what it is supposed to do,(without starting all over from scratch),my guru is on holidays,I spent several allnighters since before the new year at the Microsoft site reading and doing what I read.
),would be as easy as ruffles on a serger,or sewing machine.