Problems finding clickmap lib on localhost?

This looks really interesting - thanks for the initial release!

I'm having a few problems getting this installed on my localhost dev server - I've checked out the dev version from cvs and I've got the clickheat library downloaded and configured at:
http://localhost/aardvark/clickheat
My drupal installation is at:
http://localhost/aardvark/drupal

When I go to the clickmap settings page at admin/settings/click_heatmap, it won't accept the path I enter (http://localhost/aardvark/clickheat), returning the error 'Valid ClickHeat installation not found at server url.'

Looking at the module code, this error appears to be because the _validate hook checks the response from click.php in the clickheat directory which it expects to return the string 'Parameters or config error' when called with no parameters.

If I manually go to http://localhost/aardvark/clickheat/click.php in my browser, 'Parameters or config error' is exactly what I get.

However, if I call the following code in the 'Execute PHP' block of devel.module (which is how the clickheat module checks)

$response = drupal_http_request('http://localhost/aardvark/clickheat/click.php');
print_r($response);

I get the following:
stdClass Object
(
[error] => 10060 A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
[code] => -10060
)

Any ideas?