From reading the tutorials, it appeared that this method is used to set textures on different sides, but it doesn't seem to be doing anything in my block class:

	@SideOnly(Side.CLIENT)
public Icon getIcon(int par1, int par2)
    {
        return (par1 == 1 || par1 == 0) ? this.hive_top : this.blockIcon;
    }

Other than this, the block is working fine. It doesn't look like this method is being called at all, even when I put errors in, it doesn't change anything.

public Icon getIcon(int side, int meta) {
	if (meta == 0 && side == 0)
		return iconTop;
	else if(meta == 0 && side == 1)
		return iconBottom;
	else
		return iconDefault;
}

 

Also, make sure you're registering your icons

Perhaps I'm not registering the icons correctly? Nothing I do there seems to change anything, here's my whole block class:

 

package amanus;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.block.Block;
import net.minecraft.block.BlockFlower;
import net.minecraft.block.material.Material;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.util.Icon;

public class BlockBeehive extends Block
{
    @SideOnly(Side.CLIENT)
    private Icon iconTop;
    private Icon iconDefault;
    
public BlockBeehive(int id, Material par2Material) 
{
	super(id, par2Material);
	this.setCreativeTab(Amanus.tabAmanus);
}
	@SideOnly(Side.CLIENT)
public Icon getIcon(int side, int meta) {
	if (meta == 0 && side == 0)
		return iconTop;
	else if(meta == 0 && side == 1)
		return iconTop;
	else
		return iconDefault;
}

@SideOnly(Side.CLIENT)
public void registerIcons(IconRegister par1IconRegister)
    {
        this.iconTop = par1IconRegister.registerIcon("tree_top");
        this.iconDefault = par1IconRegister.registerIcon("tree_spruce");
    }


}

I'm not sure, but try replacing the @Side.only in the register icon function with an @Override.

Oops, the class wasn't being initialized properly. Looks like the code I posted initially works just fine.