I am an owner of Internet Forum build on vBulletin. Since I have moved my site to a new hostings provider with PLESK I am facing a lot of problems. Users get logged out or cannot log in. Site is not visible all places. Subdomains are not working. I want to create multile subdomains. Cannot email to more than 250 users at time, I have more than 14.000 users. etc. etc. I need an expert, who can look through my site and correct if needed. Furthermore I want to activate SEO - as soon I do this, I get broken links.