CSS Fixing to Custom Joomla Template

Hello. A few months ago ive hired some idiots to convert a psd to jooma 2.5 template. They made a conversion to joomla 3.0 template but thats not a problem. The problem is that NOTHING is working. The megamenu was created using CSS, so i cant make any module assignment to different sub-menus. Article css is broken. Im not going to hire again any indians or pakistans cause you are the most unprofessional developers ive ever met. And of course, im not goint to deposit milestones again and then spending time to dispute them with awful work. The winner, will be offered a permanent position to out company to work under joomla templates.