Okay, it seems like your blockland stuff must be in another folder... GO to your shortcut, right click it, go to properties, and check where the shortcut leads to. If it's not the Blockland folder your Add-Ons folder is in, go to the folder it says and check there. If it is the Blockland folder... Okay, two possibilities. Either your whole blockland folder is INSIDE blockland\Add-Ons and you had somehow moved all the files into the Add-Ons folder, or... you have one strrraaaaannnnggggeeeee computer... Also, did you do the thing the poster a few above me said about unhiding files? If so, do the things I suggested. If not, GO DO IT! :)