Just looking for clarification on the tag cloud link issue.
I’m using v. 0.3.1 of Sitewide Tags, and the same problem came up when using the tag cloud in sitewide-multi-widget. (Tags pointed to wrong page: myblogs/tags/blog/tag/mytag instead of myblogs/tags/tag/mytag.)
As with DSader I was able to fix this by setting the permalinks in Blog 1 to default.
Does this mean I am storing up trouble in the db as described by Dsader above?