[Serusers] serweb & usrloc

hi! is serweb intended to just send IM one-way? i configured everything and noticed that i can only send messages from a web-client (via serweb) to a sip softphone, but not the other way around. i noticed that this is due to the fact that when a user logs on to serweb, it does not put anything in the location table in ser db. so if a message was sent intended for that user, the sender receives 404 not found (due to failure in lookup()). what i am thinking as a workaround is to manipulate the php files in serweb to insert the user into the 'location' table via fifo, the method though crude might just work... my problem is, before i could try to do the workaround is whether serweb would accept the message if it indeed received one on port 5060? would it? or should the proxy send the message through another port like 80?