Since your device doesn't have a control key on the hardware keyboard, you won't be able to use the copy/paste shortcut but there are other shortcuts that you can use when messaging. Press and hold the letter shown to perform the function:
H----------------List shortcuts
A----------------Reply All
R----------------Reply
K----------------Mark Read/Unread
F----------------Flag
M----------------Move
O----------------Forward
D----------------Delete
L----------------Download Message
S----------------Send/Receive
- Copied from http://www.treoprotricks.com/post/Keybo ... aging.aspx