I need help getting members to show up in buddypress

Ok so i had a few issues with my site and decided to do a fresh install and use the http://wordpress.org/extend/plugins/export-users-to-csv/

I did this and imported them into the new wordpress install which is both a multisite and buddypress site.

All went well and the members are setup and can log into the site etc. However the issue is they dont show up on the buddypress pages such as members and activity so my site looks like it only has 2 members instead of 160

Any ideas how i can get buddypress to pick up these members and show them?