ok, so I think I may have figured it out???
I went and looked at the pictures i took yesterday of the girl....and it showed that the flash fire each time it was supposed too...
So that confused me even more....
well, I got my equipment all set up again and retook the very first picture that i posted w/ the stroboframe and the picture turned out exactly like it should w/ the flash. And it worked several times!
So, I am going to assume that it was my error and something wasn't connected good enough the first time when I took those pictures. But, If for some reason that wasn't the problem and it happens again soon then I am going to send this promaster cord back and get the canon.
Seems like a long way around a stupid error, but I have learned along the way and I would always prefer human error over equipment errors!!!
Thanks so much!!