Podcasting is easy for me, I am on a mac so make one on garage band 3. If on a PC it is a little trickier... Classblogmeister does not host the podcast (just like doesn't host the photos, you need flickr etc) so you have to have somewhere to put them - I host mine on our school website ...

You can use imovie and upload it as a quicktime then copy and paste the www url of where it is hosted to put in your blog (in the podcast space). You can host movies on 'teacher tube' but not sure about podcast hosting .... podomatic some use but it is a little clunky.