From 1.5 to 2.5 joomla

Hy there,

About 2 days ago i buy this template (game magazin 2.5 joomla). My current website is 1.5 (www.live-iasi.ro) and i want to put the new template on the current 1.5. Can I keep my information on the current website if i upgrade to 2.5?

I have a lot of information and i don't want to write again

Thank you,
Robert Botez

You should uninstall template for J!1.5, upgrade your Joomla! CMS (you can try to use jUpgrade extension) and then install new product for J!2.5. Then you should don't loose all of your content and users.