Removing <meta name="generator" content="Joomla! -

Hi,
i am using joomla 2.5 version and want to remove this
<meta name="generator" content="Joomla! - Open Source Content Management">

secondly m blogging on bollywoodbook.in/

i need to activate google adsense on this
need ur help for doing so

very new to google adsense. i have a username and password for google . will pay u for this work . Let me know the charges.

That is added form joomla itself you should ask on their forum