Workflow security question

[kris_wug@hotmail.com]

Hello workflow gurus,
 
We are implementing workflows on service management in CRM. Our client =
wants to allow their users to access only the normal workflow log per =
workitem from SAP inbox or CICO but not all other screens which can be =
accessed from workflow log like
  a.. Start Workflow,=20
  b.. Technical Workflow log,=20
  c.. Change of Deadlines,
  d.. Graphical Workitem Log,=20
  e.. Methods,=20
  f.. Technical Work Item Display,
  g.. Display Task,=20
  h.. Technical Data=20
Our security team said they pretty much figured out that they can only =
restrict 'change workitem' option but not anyof the above list.=20
Is there a way to restrict all of the above options for normal workflow =
users.=20
 
I appreciate any of your help.=20
 
Thanks,
Krishna.=20