Hi,
That two buttons in the left sidebar? For me it loads without any problem, when click it opens up the modal dialog too, also no need to implement the bootstrap in to it, we already used bootstrap so no need to include again, you can use this markup like this.
For example, try to create a page and move to text mode ( not Visual ) in the Editor, and paste this code, and you can understand how it works.
<a class="inline" data-toggle="modal" href="#email-form">Email customer care</a>
<div aria-hidden="false" aria-labelledby="email-form-modal" role="dialog" tabindex="-1" class="modal hide fade in" id="email-form" style="display: none;">
<div class="modal-header">
<button aria-hidden="true" data-dismiss="modal" class="close" type="button">×</button>
<h3 id="email-form-modal">Email customer care</h3>
</div>
<div class="modal-body">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. </div></div>
Let us know,
Thanks,
laranz.