1: The ping issue is just you not having the conquer screen active. It seems to increase ping regardless of the server when you aren't having the window active (I assume it just sets it to a lower priority)
2: What patch is your GameMap.dat from? You'll need one from a newer patch sounds like or add the new map yourself. There's a gamemap.dat editor around here somewhere if you search
3: 408 has to do with some new item statistics. Just code the systems right and it won't be spamming that
4: You haven't coded unequip correctly. Just code it correctly same as #3 lol. You still need to send the 1009 gear packet same as equipping.