Hahaha...
Ah...good times...
I am shocked too that the n8x0 doesn't come standard with xterm preinstalled


For the 770...it should be in the main 770 repo you use..
For the n8x0 one needs to enable extras and then let the catalog update and then install it from the catalog.

Actually ...to make things just that much simpler for you...
If memory serves..
You will be using one of the 2006 OS's...gregale, mistral, ..
Or perhaps the more recent hacker edition..
For the 2006 os's. ...they used..um... osso-xterm (v 0.13) ...if my negligent memory serves me . ..

Nokia in their smartness..
Decided to make sure that first time users just didn't have immediate terminal access out of the gate...to really make a mess of their devices.
( I compare terminal in the hands of a newmo akin to handing an angry chimp a mallet and a squeeky toy filled with nitroglycerin )