Okay, so I've got the SkyUI mod as well as SKSE (since SkyUI says it needs that to run) and I know I have the most recent version for both. However, I still get the error message about something being out of date in game. The menu is changed by SkyUI, but I cannot use the filter command. Here's my list of mods, in case that helps with figuring this out.

http://i1012.photobucket.com/albums/af244/judeferguson42/activemods.png

Not sure why the screenshot is that small, my monitor is 1920x1080 Still, I think it's readable. If you're wondering, the multiple "Skyrim HD - 2k Textures" aren't all the same thing, it's towns/dungeons/lanscapes/objects but they all show up the same in Nexus...

Please post in the correct http://www.gamesas.com/topic/1418911-relz-skyui/ in future.

You're not launching Skyrim with skse_loader.
http://i.imgur.com/Grno0.png

Another thing is you haven't installed SKSE correctly (I don't think). Thank you for bringing this to my attention, actually, as I assume this is what a lot of people are doing! You can't, as far as I'm aware, install SKSE as if it is a mod. You need to extract it to your root Skyrim directory.

Edit: Yes, I am correct.

Delete SKSE from your mod list. Close NMM. Open SKSE's 7z file and extract all its contents to your Skyrim directory (usually C:\Program Files (x86)\Steam\steamapps\common\skyrim) overwriting any files it asks you to. Then relaunch NMM and set it up as in that picture.

Yeah, you cannot install SKSE with NMM.

Well, you can partly install it with NMM. I install the data folder part of SKSE through NMM. But understandably this can confuse some people