If you are on 32bit OS, avoid downloading torrents with files over 2GB. Files larger then 2GB is only supported on 64bit OS. Also, make sure your account has enough free space.
It wont affect your site if you install it properly, and follow instructions. You'll need PHP 5.3.x though, so you may need to recompile your PHP from whm. Reinstalling sBorg will use up 1 more install ticket. 1 install ticket is good for only 1 install or reinstallation. Once installed, you can use it forever (no time limit).
ohk but my WHM is expired and i have install PHP-Version: 5.2.17 so it can run in my server?