BESX and Internet Access from Browser

[Astaroth.sv]

Hey there, im a newby to BESX, we're kinda messing with it to see if it fits what we need in our organization. I have successfuly installed BESX and I have managed to Activate my Curve 8520 to it, Outlook works wonders, but there are something I would like to know.

Internet Access from Browser:

My Browser is always returning me a "HTTP Error 500 Internal Server Error", I then I tryed Opera Mini (Which I don't like that much) and it works fine. Then I tried to access one of our Intranet sites... and that worked fine, so I thought that now BESX is now my 5820's Gateway to the Internet, at least for Browser, so I authorized access to google to my BESX server IP address, then I tried to access google from the server and It loaded perfectly, then I took my 8520 and I got google access there as well.

Questions are:

- Do I have to allow my BESX server to access the Internet in order to have Internet access in the berry's in our BESX, or is there any way arround it to avoid BESX being the default gateway?

- Is there any way to create diffrent groups to have different Internet access permissions? IE Managers would have full Internet access while regular employees would have restricted access

- Can I block access to Intranet sites?

Thanks in advance!