Permalink.php isn’t missing and I think I have made it compatible with my theme, though I’m not sure now. I’ve solved it by doing to following:
IN BP.CSS CHANGED overflow:hidden to visisble on line 73 of ul.activity-list li
IN BP.CSS CHANGED position: relative to static for ul.item-list li on line 1102
I’m not sure of whether this is the right way of doing it.
I’m also desperately looking for a way to do this so I can remove the author page and just have the buddypress profile. Does anyone know how this can be achieved?