WP on local pc issues

First I’d like to say that I believe I followed Podz’s excellent instructions. I just have 2 problems. One is permalinks. Every post and page comes up with the 404 error. I did update the apache httpd.conf file. Did I miss something else?

Second problem is trying to login to WP admin. I am getting a lot of ‘headers already sent’ errors from plugins I use (e.g. awstats and category-levels). I deleted my local copy of awstats first, but then got the category-levels errors. Did I miss a step here, too?

Thanks for any help you can suggest.