Need Web presentation/training software suggestions

[backpackerx]

Ok, what I need for my company is a web based training showing remote medical offices how to fill out a billing form. I'm thinking something done in flash or similiar that walks you through the process step by step. I do not want a video presentation as many offices still use dial up.

I realize this will probably need to be professionally done and don't intend to do it myself but would like some suggestions on who does these things and what format or software I should research.

Thanks