I am using WP 3.03 and Atahualpa 3.5.3 and have several problems with my blog - www.mastercustomer.com.

1. Search box, RSS/ Comments disappeared when I added full width header and overlay Blog TITLE over Header Image.
2. Font type/ size different in IE8 and Firefox/ Chrom
3. Title Box radii not showing in IE8

I will appreciate any help, thanks!

1) search box and rss in the header area show up when you use %logo
2) different browsers show fonts differently, some browsers do not support fonts that another browser might use. Do a google search with 'web safe fonts' an read up about it
3) IE does not support CSS rounding at least not until IE9