Version CVS v 1.45.2.40 NOT WORK on DRUPAL 4.7

This version use module_exist API of drupal 5.x

The patch is very simple, repleace the 5.0 api with the 4.7

(<)Z:\xampplite\htdocs\changeme\modules\signup\signup.module (My version)
(>)Z:\xampplite\htdocs\changeme\modules\signup\signup.module3 (StdCVS Version)
607c606
< $has_event = module_exist('event');
---
> $has_event = module_exists('event');
827c826
< $has_event = module_exist('event');
---
> $has_event = module_exists('event');