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This paper has been withdrawn by the author, due to an error in Proposition 2.2.

This paper has been withdrawn by the author due to a mistake in the section 4.

The paper was removed.

This paper has been withdrawn by the author, due to a significant error in section 4.3.1.

This paper has been withdrawn by the author due to an error.

This paper has been withdrawn because there is a fundamental error in the computations; with the right computational scheme it seems to be just a version of the Jones polynomial

This paper has been withdrawn by the author, due to errors in the figures.

This paper has been withdrawn.

This paper has been withdrawn.

This paper has been withdrawn by the author, due to errors in Groebner basis calculations in the cases of five and six dimensional groups.

This paper has been withdrawn by the authors due to some fatal errors in the analysis.

This paper has been superseded by math.AG/0510287 and withdrawn by the author.

This paper has been withdrawn due to a crucial error in the proof of the main theorem

This paper has been withdrawn by the authors, due a crucial error in Sec. 3.

The paper has been withdrawn.

The paper has been withdraw by author due to a crucial error in equation 10.

The paper has been withdrawn by the author.

This paper has been withdrawn, because its material has been revised and became part of paper math.GT/0010184

This paper has been withdrawn by the author, due to errors in the figures.

This paper has been withdrawn due to a error in Theorem 3.1.