Ive found the fastest way is to install from a zip file. Just do a search for xbmc add ons from your pc / mac (The unofficial list is best) - download whatever zip files you want to a computer, and ssh the zips you want to install to your iPad with winscp or whatever. Then just install the add on zip files by launching xbmc, then system, settings, add-ons, install from zip file. Now browse to where you saved the zips to on your ipad and install them. Now those add on sources will appear under get add-ons, where you can install them. Not sure I can link to a site but the main xbmc site (it's .org) has lots of info, good luck