I've searched for this already and didn't find anything that helped me make this work. I have a client who uses a newsletter service called Mad Mimi, apparently, and though I was able to insert her signup form code into the widget on her Wordpress blog (on the same server), I can't get it to work in the Blank Sidebox mod. Here's the form code:

<form action='http://madmimi.com/signups/subscribe/19105' method='post'>
<div><label for='signup_name'>Name</label>
<br /><input id="signup_name" name="signup[name]" type="text" /><br />
<label for='signup_email'>Email</label><br /><input id="signup_email" name="signup[email]" type="text" /><br /><input name="commit" class="button" type="submit" value="Sign Up" /></div>
</form>

I've tried putting the backslash before all the single quotes and leaving and taking out the ' and . that are in the file when editing the template file directly. i also tried putting the form code into the language file. Every time I do it, the page stops loading right before the sidebox is displayed.

Could someone help me, please? Thanks!!