I have not yet prepared a beta release with documentation for the new realbot, but you can try this
modified version of mEAn. This one is very untested, but it was running all day on my server and is still going OK.
To get it to work with the latest Realbot WIP (metamod version), use the below modified settings for loading up your server
+localinfo mgamedll addons/metamod/dlls/metamod.dll +localinfo mbotmod realbot_mm
You must have liblist.gam load the mean.dll. The startup settings as shown above will tell the mean.dll to load metamod instead of the bot dll (your metamod.dll path may be different). You will tell metamod to load realbot_mm.dll as shown in the realbot install instructions.