If you want to make your RollerBlogger blog readable on an iMode mobile phone, I've made a few templates that can help you to get started. You can download them here. Pay attention to the names:

• create a page with imode.txt, whatever the name or the link
• create a page with _de_template_imode.txt, the name must be _de_template_imode
• create a page with imentry.txt, the link must be imentry

See in use here.