BibTeX, biblatex and biber ⇒ sort the bibliography by FIRST author and then by year

[bjorn victor]

Dear all,
I'm finishing my PhD thesis in LaTeX and I have received a request from the committee to change my bibliography.

Right now, in the text, there are refs like "Nesvizhskii et al. (2003), Nesvizhskii and Aebersold (2004) and Nesvizhskii and Aebersold (2005)", so when people want to find a ref, the look for Nesvizhskii and then the date. However, in the bibliography, the sort rules are
1) first author
2) second etc. authors
3) year

and this results in something like:

Nesvizhskii, A. I. Aebersold, R., 2004. Analysis, statistical validation and dissemination of large-scale proteomics datasets generated by tandem MS. Drug Discov. Today 9 (4), 173–181.

Nesvizhskii, A. I. Aebersold, R., 2005. Interpretation of shotgun proteomic data: the protein inference problem. Mol. Cell. Proteomics 4 (10), 1419–1440.

Nesvizhskii, A. I., Keller, A., Kolker, E. Aebersold, R., 2003. A statistical model for identifying proteins by tandem mass spectrometry. Anal. Chem. 75 (17), 4646–4658.

I would need to sort on FIRST AUTHOR and then YEAR, so my 2003 entry would be at the top and people can just follow the dates down in order to find the one that are looking for.

The bst file I'm using a slightly modified one from Elsevier, but I fail to find where I need to modify the sort behaviour/sequence...

If anyone can help me with this, I would be deeply grateful.

I have provided the MWE .tex file, the .bst file and the .bib file.

Thank you