I'm having that problem where my module does not appear for installation, instead I get "No module found!" So I'd un-installed openerp:

dpkg --purge openerp_7.0-20131021-232357-1_all.deb
rm -Rf /usr/lib/pymodules/python2.7/openerp

then re-installed:

apt-get install openerp_7.0-20140106-002615-1_all.deb

and yesterday that lazarused OpenERP and vet_clinic appeared, as if by magic. But, today that yields no fruit. And interestingly /var/log/openerp/openerp-server.log still contains:

2014-01-06 13:10:28,865 30115 INFO ? openerp: OpenERP version 7.0-20131021-232357

I'm surprised to find the same old version proclaimed after purging then installing a new version.

Do you have any ideas how to update the version of OpenERP when installing the new version?