[Brian]

We don't currently support this - are these web pages themselves ones that were exported from OmniOutliner? That might be something we could add in some future version of the application. Email the support ninjas from the help menu and they can add a feature request if one doesn't already exist.

As far as I know importing generic DHTML pages would be a tall order; if that's what you need, still send the feedback to the support ninjas, but I bet that's less likely to happen.