Neophytos,
yes, I believe we are still missing the ability to set locale from the browser preference and I think we could use your proc. Please submit it to the Bug Tracker.
Venu,
after you visit /acs-admin/apm you should select "All" packages in the top filter. Once you have that, select your package in the listing. You should now be on the page displaying information about your package and there is an Internationalization link there.
