Project sublevel tasks ?

[areacracks]

Hi, im using the Budgeting and Tracking Multiple Projects template in WSS 3, customized, and im trying to do somtehing like this:

Create an item list "project"
--trigger WORKFLOW "A" that creates as many task i want
Task A1
Task A2
Task A3....
-- trigger WORKFLOW "subtask"
Task A3-sub1
Task A3-sub2
-- close WORKFLOW "subtask"
Task A4
-- close WORKFLOW "A"
Close project


i need to "mark" in someway the tasks created by WORKFLOW "subtask" so i can group they latter in a view.

Its this possible or im dreamming ? =S

Tanx !