A grid typically will have a set width for a website, and then columns that include margins built into them. you can apply the grid like so:

<div id="wrapper" class="container_12">
<div class="grid_8"></div>
<div class="grid_4"></div>
</div>

What this does is create a generic "content" and "sidebar". A grid the width of 8 columns, another the width of 12, and a total of 12 columns wide. This markup is based on http://960.gs/ by Nathan Smith, I recommend checking it out. It can help a lot if you are in a hurry!

I would assume so, I am by all means no wordpress pro though, I have barely touched any kind of CMS, most of the sites I design have no need for it. But I have more recently started to look into it. But it is more about setting up the css with the grid markup and then using those selectors in your normal code to align it the way you want it to. Again, I am not very savvy with Wordpress, that could be a different beast entirely.

its what im trying :)

while your here, im having trouble with my jQuery on this site:

http://intricatetattoodesigns.pcriot.com/

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script&gt;
<script type="text/javascript" src="switch.js"></script>
<script type="text/javascript" src="menu.js"></script>

i dont know weather to put it in header or footer, ive tried a lot! putting it in seperate folder root directory, changing the extention, putting them in header, footer, BOTH, but it just doesn't seem to work!

are you supposed to put it in the header? or footer?

You really need to validate your site, you have some issues.

hey, so i just checked that out, there was some errors,

the only css errors and / warnings that were present were the border-radius, and then web hacks for it.

the HTML ones were because of the different pages like sidebar.and im still changing an ID to Class.

and also i had a Centertag in there just for a reminder that ive got to do it in CSS. so thanks!

is there a way around the moz- border raduis hacks? (without images). OTHER then JQuery, cause i can't seem to Impliment my jquery in wordpress, it just wont work. im not sure if its supposed to go in Head, or footer.

Keep using the border-radius. No point in overloading the site with JS or images to make rounded corners work. Some users that choose to use older versions of IE will see squared corners, such is life.