I do not recommend using UURollup anymore. It is old and outdated now. The BlackWingCat's extended Core and extended Kernel are the modern solution for extending Windows 2000's capabilities. Mixing UURollup with them may work but I would not do it. UURollup will install old versions of the BlackWingCat's files, so you can never be sure what the result will be. Nevertheless, you can still find the old UURollup files in the depths of my Download Archive, if you really want to .
As for the other (official) updates, I recommend following my Updates Lists under http://windowsarchives.com/updates/. The only way to use all of them though is to slipstream everything with HFSLIP2000 and then install the OS from scratch. After that you can just install the BlackWingCat's packages manually.
Well, I must somewhat agree with what you are saying (although reluctantly ). Especially in the beginning, I used to start a lot of small projects that ended up being scattered here and there (and thus difficult to manage). In my defence though, I can say that since around 2014 I have been trying to keep everything as concentrated and concised as possible. Correct me if I am wrong, but during the last 3 years the only major "reorganizations" were the forced domain change (which naturally broke all the old links) and the move to MEGA as the main file hosting (caused by the lack of space on Google Drive). I did discontinue and remove many old files with time because, well, most of them were just that, i.e. old, outdated, and obsolete.
At the moment there are really only two places where I am active, which are http://windowsarchives.com for all information and updates, and this very thread for other news and discussion. The only two unofficial projects that are still alive and not mentioned on my website are the combined .NET Framework installer (too experimental) and the HFSLIP2000 FullPack package (somewhat risky...). I am also aware that there is lack of proper how-to and I have been working on it. It is a one-man job though, so please understand . I am always open to feedback and suggestions on how to improve the current state of things.