[mistwang]

its no use, script is built that way and developer dont want to change it, as it works well with Apache.

he can test the server string and make it work with both Apache and litespeed. The change is pretty simple. How is the boss there?

so this update will solve my large file upload/download problem? will 20gb tmp be enough? and when exactly this update is planned?

Yes, it should solve your problem and 20gb should be enough. Maybe next week.