Are you opening Payables as the System Administrator or another user? If you use Payables with a user ID other than SYS, it may simply be that the security group has importing disabled. To check this, have someone with full Adagio rights open the data, then go to the File/Groups menu, and edit the Group that you belong to. Check to make sure that the proper menu privileges have been granted.

If you happen to be running an evaluation version of Adagio, the import/export menu choices will not be greyed out and inaccessible - rather you will get a message that import is not available when you try to actually import a file.