I am getting a lot of e-mail and feedback from folks having issues accessing the nUI5+ update... I don't know why. Presuming that you are a member of the "nUI+ User Group" (you can check your profile to see if you are)... If you can, please try the following...
1) Go to http://www.wowinterface.com and verify you are logged in as [dragoons3] – it should show your name at the top right of the page if you are
2) Click the “ADDONS” menu button on the top left of the page
3) Scroll down to “Features Projects” and click on “nUI”
4) Click on “nUI+ Full Version” from the popup menu – does the page load?
5) Click on the “nUI+ (Release)” link
6) Click on the “Download” link
Does it work? If not, at what point does it break? If you still can't access it, can you please try contacting WoWI support folks and see if there's a problem on the server?