Fabiano client.swf error when trying to decompile!

I was trying to add custom items in my pserver by decompiling the client.swf. However whenever I try to open client-release.swf I get an error saying it is corrupted. The client works fine, i am just unable to decompile it. Any help?

it says that because it is compiled/encrypted what you have to do is:

when you click get latest client in orape thats the client you use then after you have added the images
run the client updater