[bladeking77]

About the castle. Everything should work fine. Are you sure you copied all the necessary files. The files you need are: all .act, .chat, eng_chat..., .qst and maybe .lu, and of course all .loc files related to debir (and maybe some other).
I just checked again, everything works as intended. If you are sure that you copied all the necessary files, specify your problem further, so I could solve it easier.

For crit% and res%, look at the arena.lua I attached (it's actually a .rar file I renamed to .zip so I could attach it ). Search for these lines at 2 places:

local defenseb=Logic.hero_lu_item("defense","count")
defenseb = defenseb/5
local attackb=Logic.hero_lu_item("attack","count")
attackb = attackb/5

if defenseb > 0 then
for a=1, Attack.act_count()-1 do
if Attack.act_ally(a) then
local resistp = Attack.act_get_res(a,"physical")
Attack.act_attach_modificator_res(a, "physical", "scp", defenseb, 0, 0, -100, false, 0, true)
local resisto = Attack.act_get_res(a,"poison")
Attack.act_attach_modificator_res(a, "poison", "sco", defenseb, 0, 0, -100, false, 0, true)
local resistm = Attack.act_get_res(a,"magic")
Attack.act_attach_modificator_res(a, "magic", "scm", defenseb, 0, 0, -100, false, 0, true)
local resistf = Attack.act_get_res(a,"fire")
Attack.act_attach_modificator_res(a, "fire", "scf", defenseb, 0, 0, -100, false, 0, true)
local resista = Attack.act_get_res(a,"astral")
Attack.act_attach_modificator_res(a, "astral", "sca", defenseb, 0, 0, -100, false, 0, true)
end
end
end
if attackb > 0 then
for a=1, Attack.act_count()-1 do
if Attack.act_ally(a) then
Attack.act_attach_modificator(a, "krit", "sck", attackb, 0, 0, -100, false, 0, true)
end
end
end

If you stare at them for long enough, you'll understand what each line does. It's not perfect as in one case (when I maxed all skills) my paladins had 53% physical resistance when they should only have 52%. And the bonuses can not be seen outside battle.
However, it's a good start. And don't forget to note in eng_hero.lng that the hero will gain bonuses for increasing her attack/defense.