Actually. I can provide you guys with something WAY (like 200x) better then FTP. I'll list some of the details below.
Flexible role based access control
Flexible issue tracking system
Gantt chart and calendar
News, documents & files management
Feeds & email notifications
Project wiki
Project forums
Time tracking
Custom fields for issues, time-entries, projects and users
SCM integration (SVN, CVS, Git, Mercurial, Bazaar and Darcs)
Issue creation via email
And you can pick and choose which you want and which you don't.
This will basically allow you to communicate properly. Assign tasks to people. Roll back (or forward) your projects code. Add bugs. Talk on a private forum. And so much more. Plus I'll host you guys for free if you add Hosted by bla in the credits or somewhere :D.
And don't worry. I keep nightly backups spreaded through 3 servers in 3 different data centers.