WordPress MU

Looking at using WPMU as podcasting platform, installed Anarchy and loving it (thanks zeug), wanted to ask about the following:

1. How can I create a link to itpc://blog.domain.com/username? If I create a link (wysiwyg or code view) using the itpc prefix, WPMU replaces it with http. Is there a setting that can control this?

2. How can I get the RSS2.0/Podcast buttons on every page? Once I get the itpc issue resolved, I'd like the RSS/Podcast buttons' href to be to itpc, which will automatically launch the client's iTunes application and subscribe them to the podcast in question.

Thanks!

Bump.