[Serusers] Problems and doubts

Hi to all i've some doubts: I've installed SER on a Linux RedHad 9.0. 1 - Why I can't see another SER server on a lan with MSN? Ex. andrea(a)foo.bar cannot send message and view andrea(a)foo2.bar 2 - On seruser.pdf at page 50 i've read that "The latest SER release includes automated multidomain management which greatly automates maintenance of multiple domains.". I've seen on mySql db that there is the domain table with domain primary key and on subscriber table user_name and domain are primary key. I think that there is exist a foreign key from subscriber to domain. Who has to write the information on this table? How do i configure ser to use multiple domain? 3 - How do I configure ser to report information on mySql database? For example, i've configured ser for Reporting Missed Calls by the acc module but there is an error on acc_request("404 Not Found"); instruction on ser.cfg. 4 - Microsoft MSN 6.0 doesn't support service communication. Is it true? 5 - On seruser.pdf at page 87 there are the old version of database tables. 6 - Where can i found help for ser command line options? regards, Andrea