Counting Parent Records And Displaying Total??

We have an helpdesk sytem on SQL 2000. I am trying to show how much calls have been assigned to each parent category plus it's child categories in a single row. The thing is when I run my query it display parent and child categories and each on it's own rows. I do get the call totals for each row, but I would like to add the totals of the rows together and display it on row. The new table must have then 6 rows (because there is 6 parent categories) with the total of all calls for that parent category, as well as it's childs. Example:

parameter # Calls
------------ --------
desktoppp 5
desktopqq 6 {This is what I am getting at this stage}
desktop t 4
network
r 9
networkgg 10
softwarevv 3

This is what I would like to have:

parameter # Calls
------------ -------
desktop 15
network 19
software 3

Please Help!