I'm not sure where to start on this one...

-- You really need to run the site through an HTML validator to check for code errors. You have a lot of them. http://validator.w3.org/
-- The code itself is a bit of a mess. There are a lot of <font> tags used (that tag is depreciated and should no longer be used in modern web design) and a lot of span tags with inline styling that should be handled by CSS in an external CSS file.
-- improper use of the "address" tag repeatedly throughout the home page
-- missing closing tags
-- Something like this shouldn't really be necessary:

  <!-- content -->
  <div id="content">
    <div class="row-1">
      <div class="line-ver-1">
        <div class="line-ver-2">
          <div class="line-ver-3">
            <div class="wrapper">
              <div class="col-1 maxheight">

                <div class="indent-1">
                  <div class="title">

I'm sure that could be simplified.

Overall, I get the feeling that whoever originally designed the site understood the actual code that makes it function. Whoever is currently working on it is simply using Dreamweaver or a similar WYSIWYG code editor that is adding invalid code and errors into the site.