I successfully installed Pagination, a Movable Type (MT) plug-in from MT-HACKS. With Pagination I'm able to paginate blog entries by author, category, date-based entries, and entry archives. Pagination even has the ability to break long entries with comments into multiple pages.
Before the Pagination plug-in was installed only ten entries would be displayed per category; any entries prior to the last ten could only be accessed through the archives. Now all category entries are available through the additional "next and "back" page navigation, located underneath the page's last entry.
This is one MT plug-in I highly recommend. There is a free version with limited functionality, and it is tagged with a credit blurb. Several licensed versions are also available.