Multiple Jquery Conflict

Multiple Jquery Conflict

I am an intermediate user of Java Scripting , Jquery, PHP and HTML. I am trying to develop a website that has multiple scripts. Individually the scripts are working fine. But when I ad WOW Slider Script, it causes to stop working menu script effects and slider.

I have uploaded incomplete website at my friend's webspace. Plz have a look at the page: www.inetstudies.com/perfect/index.html

By default, the image slider has stopped working, menu effects have been disappeared, but the wow slider at the bottom (Hot Properties Section) is perfectly working.  When I delete this line:

<script type="text/javascript" src="engine1/jquery.js"></script>

the image slider start scrolling and the menu effect appears, but the wow slider stopped working. Plz help me to get rid of this issue

Plz help me identifying and resolving the issues.

Thanx in advance.