Four easy steps.
1. Find a place to host your podcast file. You can use your UH Account. Here are links to more information on how to activate and FTP to you UH account.
2. Create a blog. You already have access to Blogger through your iGoogle userid.
3. Create a post on your blog with a link to your podcast file. For example: http://www2.hawaii.edu/~plawler/podcasts/wordnerds.mp3
4. Once you have created a successful blog and uploaded audio content, the next step is to create an RSS (really simple syndication) feed for your content.
An RSS feed can be created easily (and for free) at Feedburner.com. Check it out!