Indoor Cameras on CAT6 wiring

We were told the indoor cameras would convert to outdoor cameras by putting a sleeve over the camera, which they sold us, and that it would work in a new home that was being built, using the cat6 line (POE). However, it is not working and we have spent lots of extra time & money to get it to work, after talking with them several times and them telling us, you just need "this". I am not happy with the way things have turned out. Sure, the wireless outdoor camera looks like a good idea, but I have already paid for the wiring!