Thanks for the help I got it working. Basically I had multiple sda,sdb,sdc,sda1 and so on making life difficult for me when editing the fstab to reference my swap space. But (total noob moment) when i went into the resources tab it told me exactly what ones the pineapple device was seeing eg sda1, sdb1. Now its all working perfectly. Thanks for the suggestions!
I know I'm repeating a lot of what has been posted already, But having followed Darrens guide and setup my usb and swap space correctly I still cannot get the option to install sslstrip to usb. It is most probably something to do with my fstab but I can't see what. Any help is really appreciated :)