Hello.
If you follow my blog at kmdvm.blogspot.com I have a few articles on this. I would use a soft splint and rest. These kittens grow and the legs strengthen and they can have normal lives. If you are anywhere near me in northern Maryland I will help.
Hello,
I think that every 21 year old college person needs to rethink such a young pet. I also think that you should regard yourself as this kittens parent until she is spayed and fully vaccinated. Kittens, and anything this young are inherently fragile and vulnerable and need constant supervision and immediate veterinary care from the first days of adoption.
As far as being able to wait until Tuesday I cannot answer that with anything other than what I wrote above. The minute you fear there is a problem you should be at a vets office.
I hope she is ok