Master Merchant not showing in AddOns

[Shamus44]

I downloaded MM last night and at the character screen, when I click AddOns it isn't listed. I checked the box "load outdated addOns" (or whatever it says) and still nothing. The other addOns I have are DolgubonsLazyWritCreator and Skyshards. They installed and loaded fine.
Any help is appreciated. Thanks!