I bought the South Park theme to use CDLCs with. I dont care about extra work, but it doesn't show up on the list of song ids for me to replace other songs with. I am using the latest beta, so I dont know.

You'll have to add the song yourself, so follow these steps:

 

1) Go to the place where you installed the app (probably located in Program Files folder on the partition where your OS is installed),

2) Find "RocksmithToolkitLib.SongAppId.xml" file and open it

3) Add the AppID for "South Park Theme" to the file by adding this line:

 <SongAppId Version="RS2014" AppId="369766" Name="Primus - South Park Theme" />

 

between the latest SongAppId element ("James Gang - Funk #49") and "", so it will look like

 something like this: http://i.imgur.com/phM1oGJ.png

4) Save the file (you might have to save it on another place and maually replace it with the new file because of access permissions)

5) The new songs should show on the AppID list :)

Thanks! It worked!