Posts are actually associated with a main category (and optionally sub-categories) which in turn are associated with a blog. Multiblogs.php (in the root level folder) ties multiple blogs into one page, as does summary.php so you might find some inspiration in one of those two files?
General Support
b2evolution CMS Support Forums
Posts are actually associated with a main category (and optionally sub-categories) which in turn are associated with a blog. Multiblogs.php (in the root level folder) ties multiple blogs into one page, as does summary.php so you might find some inspiration in one of those two files?