HELP with Aliases and Forwarding

[Sherry Work]

We have just moved to a Windows2000 server, and I set up all of our aliases and then when I set up the forwards for the aliases, the aliases names moved out of the aliases page.   Our forwards are not working, and the only POP account is postmaster.   I do not have access to the administrative functions of qmail, other than adding a Pop account, aliase forward and creating a mailing list.   The mailing list does not work either.   What can I ask our ISP to check? As I can not see the error logs.   Any help would be great, thanks