Ah,
On any NPC, to move to the dungeon you used the command MapMove (Specific Co-ords) or Map (Random location on Map).
MapMove MAP X Y
i.e. MapMove D2001 150 240
or
Map MAP
i.e. Map D2001
If you want to do a little more advanced, you could do the following,
[@Main]
#SAY
< Bichon /@Mover(0,100,150)>
< OldBichon /@Mover(10,150,250)>
etc
[@Mover()]
#ACT
Mov A1 %ARG(1)
Mov D1 %ARG(2)
Mov D2 %ARG(3)
Take Gold 5000
Give TownTeleport 1
Mapmove %A1 %D1 %D2