ASA 5505 with TMG forefront 2010(1 nic)

Hi,

I have following scenario:

Internet(ADSL(Static IP))-> ASA5505-> TMG Forefront 2010(just one NIC)

I have it in a small office, where inside network is 10.100.97.0 255.255.255.192 gw10.100.97.1.

I have router from ADSL connected to external port of ASA, and TMG and LAN Switch connect to internal ports of ASA that are in same Vlan.

Can i have internet from TMG in this scenario? I can ping external websites from ASA, but i can access internet from TMG and other clients ...

Any help will be appreciated!