Done

src/main/java/mods/alice/gp/GlassPipe.java

@@ -1,6 +1,6 @@
 package mods.alice.gp;
 // This is in no way the work of Mandrake and Dr.Zed and the original author is free to use what I contributed.
-import buildcraft.core.CreativeTabBuildCraft;
+import buildcraft.core.BCCreativeTab;
 import buildcraft.transport.BlockGenericPipe;
 import cpw.mods.fml.common.Mod;
 import cpw.mods.fml.common.ModMetadata;
@@ -31,7 +31,7 @@ public void forgePreInitialization(FMLPreInitializationEvent event) {
         meta.authorList.add("alice");
         meta.credits = "alice";
         meta.autogenerated = false;
-        pipeItemGlass = BlockGenericPipe.registerPipe(PipeItemsGlass.class, CreativeTabBuildCraft.PIPES);
+        pipeItemGlass = BlockGenericPipe.registerPipe(PipeItemsGlass.class, BCCreativeTab.get("pipes"));
         pipeItemGlass.setUnlocalizedName("PipeItemsGlass");
         PROXY.forgePreInitialization(event);
     }