Warcraft doesn't see the maps (in game?). If that's the problem (I have it,too), simply rename the map (so it's not too long and there're not much special figures like :&. etc) and, if that doesn't help, cut the map from it's folder to maps/downloads (or else, but a simple foldername)
For example, your map "TalesOfTheGrunt Beta 3.77.w3x" is in the folder "maps\download\TalesOfTheGrunt Beta3.77\TalesOfTheGrunt Beta 3.77.w3x"
Rename it for example to "GruntTales.w3x" and put it in the folder "maps\downloads\GruntTales.w3x"
wc3sear does have a little file upload name problems it can't be the zip because once I uploaded 2 icons with " ' " and " ! " it uploaded the fine but what I saw was a not very nice box (like error images) lol.