Shanta,

TDP for Lotus Notes is the renamed ADSMConnect Agent for Notes 4.x
TDP for Domino is the new product for Domino r5 that exploits the new
backup/recovery APIs
(and is quite different from the Connect Agent for notes 4.x)

Choose the product you need based on the level of Domino server you have.

Chris Zaremba
TDP Client (formerly ADSM Agent) Development
internet  zaremba AT us.ibm DOT com