Category Like Latest Page?

I have the main blog nearly as I want it, but the categories just won’t work how I’d hoped.

I want the category page to show a shortened version of the post (limited to about 200 characters).

I found a mod which does it for all the catagories.

Can I get, for example, this page…..
http://www.abeontech.com/category/web-design

To look more like this page…..
http://www.abeontech.com/latest

Thanks in advance!