Session and cache

I’m developing a simple application splitted into two parts.
First part is a management software
Second one is a web site.
Both share same DB,but, for others reasons, first run in .net and second in java.
I’m not using any cache support, but I’ve noticed that hibernate store in session temporary changes… So every change made by management software cannot be available on web site

Is there any way to solve this problem?

Thanks in advance for you help.

P.S.: I’m using visual web developer 2005, Framework v. 2.0.50727