How to find Report Manager in SQL 2000

Hi,

I came across a SQL 2000 instance with a report server database on it - looking at the execution log storage I can see that its still being used and running the following query tells me that the connections are coming from the same server:

SELECT hostname, * FROM sysprocesses WHERE dbid = DB_ID('ReportServer')

but I cant find the SSRS instance in the services -

Did it work differently with SQL 2000? 

How can I find the report manager URL?

Thanks,

Zoe