The title is present in the feed and when subscribing in iTunes. Did you change it since the last update on October 4th? (which does show in the Store)? If you changed it in the last couple of days then it's probably just a question of waiting for the Store to update.
The only other thing I can think of is that the title includes numbered character entitites:
Missions and Marketplace Podcast: Online Business | Marketing | Finance| Lifestyle
which should render as
Missions and Marketplace Podcast: Online Business | Marketing | Finance| Lifestyle
I wouldn't have thought that this would present a problem but if it fails to update by the next time you post an episode I should try removing the numbered entitites and replacing the colon directly with a colon and replacing the | with a dash. (Wordpress may be substituting the codes anyway, but if there's a problem with this it's likely to be the |).