Joomla-register obrazac

Kako i gdje dodati u register obrazac u joomli dodatnu kolonu.Pored user name,mail-a,passworda dodao bi još OIB. Hvala

http://extensions.joomla.org/extensions/access-a-security/site-access/authentication/2034

Google it:
http://www.google.hr/search?q=custom+register+joomla&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:hr:official&client=firefox-a#sclient=psy-ab&hl=hr&client=firefox-a&hs=QH0&rls=org.mozilla:hr%3Aofficial&source=hp&q=custom+registration+form+joomla&pbx=1&oq=custom+registration+form+joomla&aq=f&aqi=g-L1&aql=&gs_sm=3&gs_upl=21818l24672l0l25550l19l17l1l0l0l8l314l2280l1.15.0.1l18l0&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=9cbe69479f612b64&biw=1680&bih=887