So, now I have Plesk working with Litespeed? I just looked at processes at Plesk and it sees apache running. Anyway, I think that for now everything works just fine, only thing is xcache admin panel, it doesn't work (but it didn't worked right on apache too, I'm confused, I think it worked before, not sure really, on working server it works).
I'll later try to modify some things in Plesk and see if it gets reflected in Litespeed even if it didn't imported configuration.
I need Plesk to configure my DNS, FTP, mail, also protection of files etc... So I would need Litespeed to work with it. Anyway, when I decide to really transfer my working server to Litespeed, I'll buy license, now I'm just testing to see how it works and what I should do to make it right.
Please, how can I upgrade PHP version? As I said, I didn't manage to have 5.3.6 successfully compiled, I need to downgrade to 5.2.17, as it's version I have running with apache.