I've made two releases of Cgiapp this week, 1.6.2 and 1.6.3.
1.6.2 was tested in a PHP 4.3.4 environment, and features several bugfixes that
give PHP4 compatibility. 1.6.3 fixes a change in
load_tmpl() that broke
As usual, Cgiapp is available on the SourceForge website, as is a complete Changelog and documentation.