Wall of text time.

Here is a list of all LordKaT Mafia steam servers! Make sure to get them here:
http://www.lordkat.com/forum/2111/custom-tf2-map-list.html

Servers:

TF2

US Public
69.147.251.135:27015
StrawBeary

Just add it to your favorites and you should be good to go. In case you have a problem doing that, you can always search for it in the main server list as "LordKaT Mafia"

For TF2 Replays:

We do not have any intentions of ever enabling the TF2 replays on the TF2 server.
It will lag the server by having to constantly be recording everything
It will lag the server because clients then have to download the replays directly from the server (At the speed you download custom maps from it)
It will use up the servers already limited storage space which could be used for mods + maps.