Thank you all for the responses. I will give the DOMNodeInserted event a try and see if it works. I'll report back with results.
EDIT:
I just tried it and it seems to have worked! Although I'm not 100% satisfied with this solution, it is a solution nevertheless. Maybe in the future, CanJS can support a feature to execute a callback when view fragments are actually inserted into the Dom.
Thanks again for all the help!