How to get permission to create full-text index?

I tried to create a full-text index on my new full-text catalog and got this error:

Msg 9967, Level 16, State 1, Line 1
A default full-text catalog does not exist in database 'foo' or user does not have permission to perform this action.

FYI--

• I connected to the target sql server with Windows Authentication
• Full-text indexing appears installed (right-clicking the table, I see the Full-text Index -> option)
• I verified that my full-text catalog was created
• This is my first time setting up a full-text catalog and index

What do I need to do in Sql Server 2005 and/or in Windows Server 2003 to get permissions?

Please be thorough (assume I am a sysadmin n00b). Thank you.

From serverfault Bill Paetzke

• If you have the database-owner permission, that's all you need to do there.

  Full-text indexing is an option in the SQL Server installer. You may need to go back and add the feature.

  Other than that, these instructions should take care of you:

  http://sqlserverpedia.com/wiki/FTS_-_How_to_use_TSQL_to_Create_Full-Text_Indexes

  Bill Paetzke : Thanks @Miles. Your link showed me my fault. The error was with the "default catalog" part--not the permissions. Once I added `ON MyCatalog` to the SQL statement, it worked.
  From Miles Erickson