If you used Business Intelligence Development Studio, they should be in the project which was open at the time.
If you used Management Studio, you have to open SSIS Object Explorer and drill down.
In Registered Servers right click on the last icon (SSIS), register your IS server if not registered, otherwise connect to Object Explorer.
Go to Object Explorer window and drill down.
Kalman Toth, Business Intelligence Architect
SQL Server 2005 Training - http://www.sqlusa.com/order2005ssis/