Michelle
My deepest apologies... This forum post never registered as "new" and I never noticed it. I do not know of any conversion classes online. There may be some that you can do over the phone.
I have mentioned Partners In Torah a few times in the forum. I think that might be a great contact. If they cannot do it, they may know of a resource you can contact.
www.askmoses.com may also have a resource list for you. They have people online answering questions, I think, 24-hours a day (not Shabbos, of course).
Please let me know you have received this.
Again, I apologize.