I don't know ALE, but maybe you could use the "LoadMesh" example. Type LoadMesh in the editor and press F1 twice. Then, click on the word "Example" above the example code. The example program opens, you can save it in the same folder as your .b3d file, and replace the mesh filename (after LoadMesh) with the name of your .b3d file.
If it remains untextured, use:
Where "texturename.jpg" is the name of your texture. The texture should be in the same folder, too.
If it remains untextured, use:
tex = LoadTexture("texturename.jpg") EntityTexture drum, tex
Where "texturename.jpg" is the name of your texture. The texture should be in the same folder, too.