Could someone please explain to me how iframes are supposed to work, cuz I can't figured out how they work. I've tried several things but none have worked so far. thx!:)

u refering to the iframe module?
what are you trying to do with the module?

I have my menu on the left side of the screen. I want that when I click on one of my menu links that the content of the link opens in the center of the page, instead of making the whole page the new link. For example I have a link google in my multimenu. everytime I click on google it opens the whole google site. What I want is when I click on my link googlel, that my menu stays, and that the google page content opens up in the center of my page. I'm just using google as a test link, what I really want to do is about my own content, but I first have to figure out how to make my menu and the place where it appears work right. thanks for your responce!:)

ok before i proceed
download this iframe module from http://www.herve-thouzard.com

install the module. then in the iframe admin.
you click on the button "add an iframe"
insert the page url into the url box.

then u link it with the multimenu module u using.
make sure you set to "parent". it will then open in the same window.

hope it helps.
or you can show me ur site. maybe i will have a better understanding of your problem.

My menu now won't appear for unknow users. but this is my site:

http://172.16.74.119/index.php


on the left side of the screen my menu is supposed to appear, then more towards the center the content of the link is supposed to appear leaving the menu on the left side and at the same time having your page content show somewhere around the middle of the page.