well
this forum says : IndustrialCraft² recent version:: v1.70! (For Minecraft 1.1.0)
but i found only : http://forum.industrial-craft.…page=Thread&threadID=4702 [1.71] but i need 1.70 to connect to my server 
maybe someone post an download for (industrialcraft-2-client_1.70.jar)
