Thanks for the link to the page, it is very helpful. I have checked it out a little and tried making some adjustments and I was able to get it to almost fit like I think it should. What I did was modify the left margin property of the form.Coolnarrow_Coolnarrow style like this:
margin:0 0 0 -22px; /*the part I added*/
Another thing that may affect it in about the same way could be the padding of the div it is being placed in so you may want to check there also. You should try making this edit for the margin in the Form Builder interface so that it is saved with your custom form preset.