php4 and php5 in dso mode?

[kinetix]

Hi all,
I have problem since upgrade my server from Apache 1.x to 2.x. Before we using php4 and php5-like addon in dso mode, and there is no problem.
Now, from our hosting company says - they can't be in dso mode, because failed, even if we try to apply concurrent mode patch.
So my question is> Is it have any problems with dso mode on both php versions and if it have when will be solve?

Additional Notice: The problem begin with Joomla components - I try with .htaccess, php.ini in account folder, and can't start normally.