there is no option for the body text, because the cufon font technique works with svg graphics, and some devices can’t display them. So we’ve decided to offer the font replacement only for the headlines. If you want, we can send you a modified file to use it also for the body text, but at your own risk.
For the other problem: if you want, you can send us ( info @ 7theme . net ) the link to your website, then we can take a look at the source code and help you to fix the problem.