I have an 8330 curve and before that an 8130 pearl and 8830 world phone and I have never been able to see html on my yahoo email I dont even have the option to "get html" on the menue. I can see it when I check it on the computer but not on my phone. But I can see graphics from my blackberry email address.
I don't think the regular OS on those phones allows you to view HTML e-mail. My Bold allows that now, but with my ex-curve all I would get were links. I think an OS update does it. I THINK.