Grey Sky mod for Fallout 3

Greetings Interwebs, just another assurance the project hasn't died since the last time I was here.

I don't really have anything to show off this time, but I do have a question of utmost importance. I'll be making a topic on the GECK forums about this too, but I thought I might as well ask here while I'm at it.

I'm trying to change the HUD, but for some reason none of the changes show up. I edited the files at Textures/Interface using GIMP, and after that failed I attempted to use Quazzy's Archive Invalidation Invalidated but all that did was break some of the other stuff I had active (I didn't see that part of the readme.)

Since I know HUD mods are possible the solution has to be out there, but I haven't been able to find any information about it on the Wiki or anywhere else.

And remember, I'm still on the lookout for other resources. If you stumble across something like a model package or a gameplay alteration you think might help, drop a link in a comment and I'll check it out when I get a chance.

Thanks, and here's hoping big things will come soon

-Entanglement