ong ago I have a website where you use the template "siteground-j15-53". A few days ago I decided to upgrade, because many things had stopped working in the wake of changing the version of php. The problem is that I note that the template does not work in joomla 2.5, which is what I installed. Is there any way more or less easy to use this template in joomla 2.5??

Thanks for your time.
Edited to change topic title

Hi
I think you need to go to Siteground with this query.  If I was in your position I would go to the Joomla! 3.8 series and skip 2.5 as that is also obsolete.Colin

Agreed with ColinM. I would suggest you make a backup before any upgrading.

Is there anyone who can suggest a deeper source of information for this website?

Hi
Do you mean documentation about jDownloads?If so look athttp://www.jdownloads.net/documentations/category/jdownloads-version-3-2
Colin