In the Atahualpa theme on your wordpress blog, you would find that posts do not display a space after commas or special characters. Internally, in the database, the spaces are correctly stored. This is a bug in Atahualpa theme and you can fix it.
To resolve, look for the BUGFIX for it on the bytesforall.com site at http://forum.bytesforall.com/showthread.php?t=14143.
Download the zip file, unzip and copy the css.php file to your website folder at wp-content/themes/atahualpa. This should resolve the problem.