I had a problem installing this app on my WAMP5 installation. This was a standard WAMP installation, and I had not made any configuration changes.

When I would load up the install page, all I got was a blue box and a Next button. When I would click next, I got an error message that said I did not have permission to access /install/<.

This turned out to be a result of the default WAMP install not recognizing short tags in PHP properly (<?= vs <?php). I ran a find/replace across the entire installer folder and replaced the short tags with the standard tags and that got me to a point where I could not get the database to load up.

I think you can also fix this problem by making a change to the php.ini file to allow short tags.

Just an FYI.

I'm having the same problem, and I'm stuck at the same spot jflint is.

Step 5 appears as follows:

[color=blue]Step 5: Finish

Installation process:

* Connected to database as root@localhost
* Database 'activecollab' found
* Failed to import database construction. MySQL said: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ';; CREATE TABLE IF NOT EXISTS `ac_companies` ( `id` smallint(5) unsigned N' at line 15[/color]

I have the same issue - I cannot get past step 1.

I have looked at the install .php files and <?php is used.

I went through install/index.php to make sure that the directories were referred to correctly. It still didn't have any impact.

did you tried to skip step1, by modifying the url to index.php?step=2 in your browser?
i did that, and my install is working quite fine for now :)