I have a website with joomla 1.5.9 and 1.5.4 template Nexus.
I'm trying to upgrade to joomla 1.7 with jUpgrade, I have completed all the steps but I can not release the button jUpgrade. The button does not work, I get a javascript error that I do not know from where..
Do i have disable some plugin to work jUpgrade and Rocktheme? And another question, does the Nexus version 1.5.4 works in Joomla 1.7?