LiteSpeed Permissions Problems??

Hi to everyone.

I have few websites builded in Drupal 6 and 5 in a server (Apache2,php5,MySQL5) that I'm renting in a company, and everything was working fine.
They decided without any notice, anyway, to change the Apache server to LiteSpeed and then my problems started.

Firstly the already installed websites was working normally but when I decided to change the temp system file, I discovered that the temp files couldn't be read or write or do anything else. I supposed that this was about the permissions of them. Just few hours ago I upgraded to drupal 6.10 and some modules too but even that files are in the root directory, in the drupal administration section still says that version is still 6.9.
In few words drupal seems to ignore all new files that i'm uploading in root directory.

In a new installed drupal6 site, problems started immediately since system deny to let drupal read files that was created from server itself. Owner and group of the files appears to be Apache. So I'm getting warning messages that tmp files couldn't be read all the time.

I contact with the hosting company and report about this and still waiting for an answer.

Does anyone have any similar problems or maybe any idea what to do about it?

Thanks

P.S. I tried everything that I found in google or in this forum but no luck.