Unfortunately you’ll need to upgrade your GroupWise client to get the events you mention to work. Up until quite recently the GroupWise client contained a bug whereby the send event would not be triggered if you replied or forwarded a message using the advanced reply/forward functions, then sent the item. Novell rectified this issue recently, but I can’t recall the exact build number the fix was contained in. I am using 6.5.2B and the send event is triggered under the circumstances you mention. A search on Novell’s support site should assist.
I hope this helps.