Should install all the BoingBag updates immediately after the OS install. OS3.9, then BB1-4, then MUI.
Since it's too late for that now, use lha x from the command line to unarchive the contents of the BB updates to RAM:, and run the install script from there.
You'll need to have the 3.9 CD in the drive to install the first two BB's. You got that?
