ABCpdf Version 7 was discontinued some years ago and is not compatible with IE8, IE9 or IE10. So this is the mmost likely reason that it's not working terribly well. See the feature chart here for details:
http://www.websupergoo.com/abcpdf-8.htm
The current release of ABCpdf is Version 9.1. This is compatible with modern versions of IE and provides two different HTML rendering engines.
There is the MSHTML rendering engine which is broadly similar to IE and there is also the Gecko rendering engine which is broadly similar to Firefox 21.0. It's one line of code to switch between the two.
My replies may feature concepts based around ABCpdf. It's what I work on. It's what I know. :-)