How to see the SSIS packages for the Named Instance (2005/2008) of SQL Server .

-> Go to C:\Program Files\Microsoft SQL Server\100\DTS\Binn [this is SQL Server 2008 but the path would be same for 2005 as well .instead of 100 it will be 90].
-> Find the file MsDtsSrvr.ini.xml and open it in notepad .
-> You will see 10-12 XML format lines .
-> By default you will see : .
-> Remove the DOT (.) and replace it with the server name \instance name .
-> Restart the integertion service from Services console .

Hope this helps .