Problem:
Non Functioning Out of Date Plugin
Symptoms:
Once added to addon folder did not show up in WoW Addon Manager (or even ACP)
Solution
Rename Folder
Once unzipped the Folder is named nUI_InfoPanel_Carbonite(Continued) Remove (Continued)
I suspect that particular naming convention is not supported by the WoW Addon Interface
Once (Continued) is removed from the end of the folder, it should show up in addons,
Load out of Date Addons
Enter WoW
Press Info_Panel button till you get carbonite, resize your carbonite map to fit, press button repeatedly to make sure it doesn't break
Profit.
