DIthesis is a LaTex2e document class that for preparing B.Sc. theses according to the requirements of the Department of Informatics and Telecommunications at the University of Athens. To the best of my knowledge, it is accurate as of September 1, 2011 - my thesis, which employed DIthesis, was successfully accepted by the Library during the summer of 2011.
DIthesis is now hosted in CTAN, the comprehensive Tex archive network. You can find it here. It contains two sample source files (with Arial | without Arial), which you can use as guides for building your thesis, two documentation files in PDF (with Arial | without Arial), a picture of Athena, the class itself and a simple README. Please refer to the documentation for more information on class commands and usage.
Note that this work is distributed in the hope that it will be useful, but without any warranty. The entire risk as to the quality and performance of this work is with you.
DIthesis may be distributed and/or modified under the conditions of the LaTeX Project Public License, either version 1.3 of this license or (at your option) any later version. The latest version of this license is here and version 1.3 or later is part of all distributions of LaTeX version 2005/12/01 or later.