I am reasonably new to this so bear with me.
I am currently developing a site using Dreamweaver MX 2004. I am using MySQL and PHP. I am developing it locally on my computer using IIS. The site functions well on my system. My hosting service runs MySQL on Apache under a Linux OS.

Does anyone know the following:-

1. Will I have any major difficulty getting my site to run under the hosts system?
2. What changes will likely be needed to make the site compatible?
3. Will the server behaviours I have included (e.g. User Authentication, Restrict Access to Page) run properly under the proposed environment.

Many thanks in advance.

The best (better) solution is to make the site directly on your testing server or remote server. In that case you can always check the output and tackle problems before the occure.

In most cases everything works fine when you move your site to a hoster. Think about the connection string and the location of your database when uploading your website.

Server behaviors will always work. It is a mistake that server behaviors need special software on the host machine. The 'only' thing Server Behaviors do is make lines of code from a few clicks. Those lines of code are 100% code and in your case it outputs PHP.