[xwiki-users] xwiki license question

Hello again, I am unsure about the license xwiki uses. When I have a look at my xwiki installation it reads: ?This wiki is licensed under a Creative Commons license?. However, when I take a look at the FAQs ?http://www.xwiki.org/xwiki/bin/view/Main/License? it says that ?XWiki is distributed under the LGPL license version 2.1? Is there a difference between those two? If so, which one is applicable? I am asking because we have a customer who sells intranet SaaS solutions for small and middle sized companies. The question is: would it be OK if he integrates XWiki into his solutions. He does not want to use functions provided by xwiki in his code/programm and he wouldn?t charge extra for it. However he would alter the authorisation process and change the style. Thanks very much for your help, Stephanie