Got this one sorted out. The mailbox has to have these bits set on the FCOS:
250 Allow NP PWG View login
251 Allow NP PWG View telephone playback/record.
252 Allow NP PWG View client to change mailbox ID
289 Enable UM-SMTP
290 Enable UM-Web View
292 Enable Call Director
Once the mailbox is give the correct FCOS, you can create/modify the call director/flow by logging in to:
http:<FQDN of MSL>/npm-pwg