For our wordpress-powered site, we have an unusual link structure need, and we've experimented with both the permalinks setting as well as some custom scripting in htaccess and some of the wp-includes files, but we have yet to figure out a way to get this to work exactly the way we want it to.
Here's our IDEAL site-wide link structure.
1. For pages:
2. For posts made by author named "admin" (main author):
3. For posts made by all other authors:
Any suggestions would be very much appreciated!!