Documentation on how to use ProStack with OMERO server is available in PDF http://urchin.spbcas.ru/downloads/ProStack/ProStackAndOmero.pdf
A screencast can be found at http://urchin.spbcas.ru/downloads/ProStack/omero-and-prostack.mpeg
On-line User's Guide is available at http://urchin.spbcas.ru/downloads/ProStack/Documentation/index.html