Exchange 2000 Lotus R5 LDAP connection

Hi:
I have 2 sites one running win2k AD domain running exchange 2000 and another site running a
NT4 domain and Lotus R5. I need to know how to create and setup an LDAP connection between the exchange 2000 server and Lotus notes, to sync address books,calander, etc. Ive been searching but only find articles for exchange 5.5 and that doesnt help me at all…………