The website has the following elements:

It has 3 different frames, how do I navigate myself to the
I have done this in the past using:
m_internetExplorerDriver.SwitchTo().DefaultContent();
//put your name or id instead, e.g. "navigation" instead of "menuframe"
m_internetExplorerDriver.SwitchTo().Frame("menuframe");
Basically you use the Frame() method to switch between frames..
In this question you can read how to identify the frame:
How to identify and switch to the frame in selenium webdriver when frame does not have id