Hi
I inserted the form into locally hosted Wordpress "Seed" theme and it makes all the sidebar widgets under the form disappear and the footer too. If I don't have a form in sidebar and have 1 in the widget footer, only the bottom footer disappears. I have adjusted the form with the following code

Form code for Sidebar
<script type="text/javascript">document.write(unescape("%3Ciframe id=\"fb_iframe\" src=\"/NewsletterSignUpSide.php" + window.location.search + "\" width=\"275\" height=\"479\"allowtransparency=\"true\" scrolling=\"no\" frameborder=\"0\"%3E&lt;a href=\"/NewsletterSignUpSide.php\" title=\"NewsletterSignUpSide\"&gt;Check out my CoffeeCup Form&lt;/a&gt;%3C/iframe%3E"));</script>
<noscript>
<iframe width="275" height="479" style="border:none; background:transparent; overflow:hidden;"
id="fb_iframe" src="/NewsletterSignUpSide/NewsletterSignUpSide.html">
&lt;a href="/NewsletterSignUpSide.php" title="NewsletterSignUpSide"&gt;Check
out my CoffeeCup Form&lt;/a&gt;
</iframe>

Form code for footer
<script type="text/javascript">document.write(unescape("%3Ciframe id=\"fb_iframe\" src=\"/NewsletterSignUpFooter.php" + window.location.search + "\" width=\"300\" height=\"524\"allowtransparency=\"true\" scrolling=\"no\" frameborder=\"0\"%3E&lt;a href=\"/NewsletterSignUpFooter.php\" title=\"NewsletterSignUpFooter\"&gt;Check out my CoffeeCup Form&lt;/a&gt;%3C/iframe%3E"));</script>
<noscript>
<iframe width="300" height="524" style="border:none; background:transparent; overflow:hidden;"
id="fb_iframe" src="/NewsletterSignUpFooter/NewsletterSignUpFooter.html">
&lt;a href="/NewsletterSignUpFooter.php" title="NewsletterSignUpFooter"&gt;Check
out my CoffeeCup Form&lt;/a&gt;
</iframe>

Can anyone please help, I've attached images of what the page side looks like before and after inserting form.
Thanks

Try dropping the script part of the form iframe and use just what's inside the the iframe tags.

Thanks Eric, that works perfectly. Appreciate your help.