I2C sending float from slave to master with I2C_Anything

I'm having too much trouble with forum timeouts, so can't continue. It's taking way too long, and I have to keep trying to reload pages time after time before I can see them. Each time I post, it takes 3 or 4 attempts before I succeed, too. I type a reply, then copy it before posting, ready for when it fails, so I don't have to re-type it.
This is attempt #2 3 4 for this post.