Have not tried the TS-2000 in the internal Packet mode for DX Cluster for APRS ;-). But as the other post lists, UI-View works very well and also download the USA maps that are on another site listed at the UI-View software site:
http://www.ui-view.com/ Be sure to have the TS-2000 in the Packet mode Menu 55, but not the auto Cluster mode ;-) then start UI-View or the other APRS prgram listed.