Click "Attach a document" rather than "Photo Browser" - it's literally 2 icons to the left, visible by default, and uses the universal "Paperclip" motif. Done. The other is even called "Photo Browser" rather than "Attach Photo" because, you know, it uses the system wide photo browser (i.e. iPhoto).
However, with iPhoto, unless you store your photos in iPhoto at which point when you hit the iPhoto library in the filesystem you are chucked into a mess of virtual filesystem. I know the file name but it's in my iPhoto library so I have to use the damn iPhoto VFS to get to it. That's a crock which means I usually a) get a mac ... b) reinstall the damn thing without iPhoto so I can get to my beloved FILES.
Click "Attach a document" rather than "Photo Browser" - it's literally 2 icons to the left, visible by default, and uses the universal "Paperclip" motif. Done. The other is even called "Photo Browser" rather than "Attach Photo" because, you know, it uses the system wide photo browser (i.e. iPhoto).
Mac Power User? Power troll, perhaps. Sigh.