IIS and Sql server 2005 Reporting Services

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SQL-Server-2005

SQL-Server

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I had installed Sql server 2005 with reporting services on windows XP SP3.
It was working perfect for 2/3 years. Recently my IIs disppaeared suddenly. (i dont know the exact reason. May be bucause IE 8. But really cant say) Now i went to add/removed programs and installed IIs. But now i dont have virtual directories for reporting services. In my SQL server Management studio still i can see 2 databases for reporting services but cant see any virtuall directory in control Panel/ Addministrative tools/ IIS Manager.
So i cant see my reports or connect to report server.
Do i need to uninstall my whole sql server 2005 and install agian with reporting services?