Some other bugs: -Players do not die from falls (eg. if you jump to your death on koth_nucleus, or any other map with a huge fall you will not die). That leads me to believe trigger_hurt is not functioning. You still get fall damage from normal jumps though.
-Confirmed: if you kill a frozen player (in that one second before he dissapears), the server crashes.
I guess thats all we can do for now.
EDIT: I just realized we were playing on KOTH maps, and when the public version of freezetag was released it did not exist yet. This might be one of the reasons. I will test this on a CP map ASAP.