FTP failure after upgrade

[Rusted]

Sorry, this is the end of the output with connection attempt:

webhostdeb1.iaccessapps.com - SQLMinUserUID
webhostdeb1.iaccessapps.com - SQLMinUserGID
webhostdeb1.iaccessapps.com - RootLogin
webhostdeb1.iaccessapps.com - TransferLog
webhostdeb1.iaccessapps.com - ExtendedLog
webhostdeb1.iaccessapps.com - PathDenyFilter
webhostdeb1.iaccessapps.com - mod_ctrls/0.9.4: binding ctrls socket to '/var/run/proftpd/proftpd.sock'
webhostdeb1.iaccessapps.com - ProFTPD 1.3.0 (stable) (built Mon Oct 26 14:21:00 UTC 2009) standalone mode STARTUP
webhostdeb1.iaccessapps.com (x.x.x.x[x.x.x.x]) - FTP session requested from unknown class
webhostdeb1.iaccessapps.com (x.x.x.x[x.x.x.x]) - FTP session closed.
webhostdeb1.iaccessapps.com (x.x.x.x[x.x.x.x]) - FTP session requested from unknown class
webhostdeb1.iaccessapps.com (x.x.x.x[x.x.x.x]) - FTP session closed.

It appears to be a disconnect with the vftp user. What do I need to check to ensure that vftp is working? I can log into mysql with the vftp username and password in the proftpd.conf file. Is there somewhere else that it should be defined. Should vftp appear in the ftpuser tables?