Vista - Generic Run-time error

On my website, the body content is populated from a database. The code that
populates the body is in the pre_render event of the .net page (C#). The
problem is that when I try to put an HTML form in the body of the page (save
raw html to database and then retrieve that raw html for browser to render),
a generic run-time error displays in IE. In Firefox the form will display,
but all of the fields are 'un-usable' as if the read-only property is set to
true (but it isn't).

I'm working with master pages so the HTML form is embedded in a .NET Web
form. I've put html forms inside of webforms before, so I don't think that is
the problem.

The HTML Form Code:

<center><form method="post" action="hiddenpage.aspx" target="_new">
<input type="hidden" name="meta_web_form_id" value="4444444444">
<input type="hidden" name="meta_split_id" value="">
<input type="hidden" name="unit" value="hellotest">
<input type="hidden" name="redirect" value="gohead.aspx" id="redirect_me">
<input type="hidden" name="meta_redirect_onlist" value="">
<input type="hidden" name="meta_adtracking" value="">
<input type="hidden" name="meta_message" value="1">
<input type="hidden" name="meta_required" value="who,what,when,where,why">
<input type="hidden" name="meta_forward_vars" value="0">
<table>
<tr><td colspan=2><center></center></td></tr>
<tr><td>Full Name:</td><td><input type="text" name="name" value=""
size="20"></td></tr>
<tr><td>Email:</td><td><input type="text" name="from" value=""
size="20"></td></tr>
<tr><td>Day Phone:</td><td><input type="text" name="custom Day Phone"
value="" size="20"></td></tr>
<tr><td>Evening Phone:</td><td><input type="text" name="custom Evening
Phone" value="" size="20"></td></tr>
<tr><td colspan=2><center></center></td></tr>
<tr><td align="center" colspan="2"><input type="submit" name="submit"
value="Request More Info"></td></tr>
</table>
</form>

<img src="Myimg.img" border="0" />
</center>