Is there a way I can select 2 points and it will select all the inbetween points so I can quickly create seams?
Not yet but you will be able to in the new version
On the meanwhile you might want to try the python version of it: http://blenderartists.org/forum/showthread.php?t=58564&highlight=shortest+path
cool thanks. Nice to know it will be there.
When will the new version be out, do you know?