Problem loading mods (AlterIW)

I realize this might not be the best/most accurate place to put this, but I'm looking for some help about loading mods.

I had version 1.3.3.7 and used LoaderX to load mods on AlterIW, which worked fine.

I upgraded to version 1.3.3.7a, the latest version and I've been online with it to check that it works, and it works alright.

I've been trying to use some mods in a private match, and in the Mod Pit play list, but as I realized LoaderX doesn't work any more. I've had a browse around this site and I've tried multiple solutions, a couple of things from House, and nothing seems to work.

I tried the "Native Mod Support" and when I load my IWD files, it doesn't work. It just loads up a normal TD/FFA. I knew the files worked, as I used to run them with LoaderX.

Anyone willing to help out? I only want to host some fun mods on AlterIW, and offline for myself, when I run off IWNetServer on my IP.

Thanks, Ells.