Hello,
4500 series have limitation to not to support WCCP V1. But you can configure wccp 2 with 4500.
Have a look on the below document for deep understanding.
http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp/configuration/12-4t/iap-12-4t-book/iap-wccp.html
Hope it Helps..
-GI