How do you 'unrevoke' permissions for Facebook apps to your profile?

[quikboy]

I accidentally revoked Facebook permissions from Cityville, but I want Cityville to post to my wall so my Cityville friends can click on them to help me out. (Don't worry, only friends that play Cityville are set to be able to see it).

Zynga hasn't been of any help. They only just completed an old mission for me, and that's about it. I really can't play this game well if I can't undo my revoke. Please help.

[Cry Baby Obama]

Go to Facebook.com and log into your Facebook account.

2
Type the name of a Facebook application into the search box at the top of your Facebook account page.

3
Click the option labeled "See more results" on the context menu.

4
Click the "View App" button next to the Facebook application.

5
Click the option labeled "Block App" on the lower-left corner of the page. Click "Okay" to block the Facebook application.