http://ftp.cis.nctu.edu.tw/data/apache/httpd/apache_1.3.29.tar.gz
Apache 1.3.29 is the best available version of the 1.3 series, and is recommended over all previous 1.3 releases. This release fixes a number of bugs and addresses a security issue ( CAN-2003-0542). For additional details, read the Official Announcement.
The Apache 1.3 series is being actively maintained, but not actively developed. Releases will be made to address security issues, or after a comfortable number of bug fixes have been made. New features will more than likely not be added to 1.3 in preference to 2.0.