have a look at this thread for vbadvanced..
https://vborg.vbsupport.ru/showthread.php?t=59803
as far as editing the navbar template, if that sentence makes no sense to you, i seriously suggest you study the admin control panel of vbulletin for a very long time. look at the styles, their menus, the ability to edit templates, the ability to create child styles, parent styles, modify the CSS selectors..
you should also consider downloading vB 2.3.4 and learning it too since there is no manual for vB 3 yet..
also, head over to vBulletin.com and have a read on their forums.. coming here, because this place is mainly dedicated to hacks, assumes you know at least a little of vBulletin.. so download the user guide or whatever it is called for 2.3.4 and give it a good once over..
but spend time in your admin CP so you at least have an idea of what folks may be talking about when they tell you to edit a template or something like that..
as far as vBadvanced, that is the thread link above where you said in another thread that you didn't know about.. i would also recommend installing it in your public_html folder and not in your forums subdirectory..