Thank you for your enquiry.
Could you be more specific about which Template applet you mean? I am not aware of an applet which lets you set the mail priority.
Perhaps you mean that after sending a High priority mail which Templates has inserted text into, the priority of the received mail is Normal? If so, this may well be caused by a problem with the GroupWise 6.5.5 Beta client. We have not had this problem reported previously. Can you duplicate this behaviour without using Templates (try sending a High priority message to yourself)?