Calling on all wordpress experts. I am frustrated right now

Here is my site - [login to view URL], some of you might not be able to see the site. That is one of the issues with it. Comparehomes has been customized couple of years ago but one day I woke up and noticed that the subdomains are not working again, infact the whole website was not showing again.. I think this was due to a wordpress automatic update that override maybe our htaccess file. I was at the friends home today and I couldn't even see my site. I dont know how the subdomains was created, I think a wide card was setup that will automatically create the subdomain when a new agent signs up and I think our htaccess file was customised as well but just like I said I woke up one day and the whole site was showing error and we couldn't access the site. We managed to bring the site back on but the subdomains are still not working till date. When you click on the subdomains, some of which I have listed below here, it will redirect you to the homepage instead of the subdomain. [login to view URL] [login to view URL] [login to view URL] Same issues when you browse the directory at the footer of the site [login to view URL] Finally. I need you to reposition the homepage layout so that the rent of buy button comes before the search form. If you can fix it, let me know.