problems in NATM0 and NG0 interfaces

[Donatas_G./LRTC at lrtc.net]

we have HE155 Series ForeRunner adapters used with intel rack systems.
hatm0 driver is not supported by harp, so in order to use atm interfaces,
we've decided to configure hetgraph interfaces (ng) on FreeBsd 5.2.1

interfaces are needed to split common internet flow to the national and
world flows. Also different interfaces are needed to support different
types of clients.

We've tried to attach iface type ng nodes (inet or atm hooks) to hatm0, but
no atm parametres was possible to set to ng interfaces.
can anyone tell a short way in crating different ng atm interfaces?
thanx