Error when adding web part to page

I've set up FBA, installed the FBA Pack and created users through the User Management page, but when I try to add one of the FBA web parts to a page, I get the following error:

A Web Part or Web Form Control on this Page cannot be displayed or imported. The type is not registered as safe.

If I go to the Web Part Gallery, I don't see the web parts and they don't appear to be available to be added.

Any suggestions?

It doesn't sound like they were installed properly, if you don't have the safe control entries.  I'd try a redeploy, and make sure the FBA Pack is activated on the site collection you're working on.

Thanks for the fast answer. Undeployed and redeployed, and they're working now.