I'm playing on my own server with Minecraft 1.1 and have installed Industrialcraft 1.62 and Buildcraft 2.21 and the required ModLoader MP 1.1 v2.1 Server and minecraftforge server 1.3.
I have a problem where I can pour water into tanks, but if I try to place it anywhere else like on dirt, stone, etc. appears for half a second and then disappears. If I click the water bucket in the inventory, the water disappears and an empty bucket remains.