I would suggest that at first, don't present it to the chapter as a whole. I'm sure it wasn't everyone saying no, I bet there were a few girls that were all for almost everything you said. Get those girls together and start talking and make a plan. Where should that plan come from? I Hear Recruitment (as mentioned above) by Colleen Coffey and Jessica Gendron from Phired Up Productions. It's exactly what you are looking for.

I'm in D Phi E too, so if you want, send me a PM with your e-mail and I can send you some of the stuff for Values Based Recruitment my sorority uses to give you some more ideas. And maybe if you say to members that aren't cooperating as much that "hey, this stuff came from a successful chapter (who just wont most improved recruitment at convention) and it's working great for them, lets adapt it for us" they might be more willing to try it out.