For direct access use https://forums.oldunreal.com
It's been quite a while since oldunreal had an overhaul, but we are moving to another server which require some updates and changes. The biggest change is the migration of our old reliable YaBB forum to phpBB. This system expects you to login with your username and old password known from YaBB.
If you experience any problems there is also the usual "password forgotten" function. Don't forget to clear your browser cache!
If you have any further concerns feel free to contact me: Smirftsch@oldunreal.com
Personally I would rather stick with the original models and textures, but this is actually really well done. It looks great and it will give everyone here a new look at Unreal.
Thanks for the positive remarks everyone. I am still at work making high res textures. Whenever I finish one I upload it right away so they are backed up offsite. They can be found here if anyone wants to see or play around with them: