I'll answer to this.
There is no way to put HTML into the current report designer. I have been down the same path as you, and know your frustration.
I have put HTML into a "lab version" and it works beautifully.
Unfortunately, the lab version won't be able to go out until we do an overall component upgrade, which one of our developers has been working on since late November. Unless he has any last major roadblocks his work should roll out into the end of February's release - at which point we can take the updated report designer out of the labs.
So you are about 4-5 weeks off. I would say this is a pretty reliable estimate - however, don't hold me to this as in the world of software development you never really know, and we are notorious for being over optimistic.
Paul