not sure if this is the right place to ask.
Joomla is offered by many hosting providers. I have set up joomla 1.7 on my local machine, and I've found a nice template to start with. But I customized it for my needs -resizing divs, modifying the css extensively, and even modifying index.php in some cases.
will I be able to do the same if I host a joomla installation at a hosting provider?
How do I get the modified PHP up to the hoster? Is it FTP only or is there some other remote access offered?