First of all you should have downloaded Albatross3d from the website
http://www.ppmodeler.com. I've used the version for Windows published on Jun 2008.
Then you should get the
exporter files and copy it in the scripts subdirectory of the Albatross installation directory.
Now start Albatross and create a sphere with longitude 32 and latitude 31 (see picture).
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The exporter currently works with spheres 8x7, 16x15, 32x31 and 64x63.
Now modify your sphere moving the vertices and the faces or using the sculpting function or applying the modification tools (i.e. do not add or remove vertices).
The following picture shows the lattice modifier:
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Now you simply export the model to a sculpty:
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to obtain a 128x128 bitmap:
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that you can upload into SL.