baseDir

Hi,
first of all, thanks for this potentially wonderful module (it doesn't work for me yet, but still...)

I have a Drupal 5.7 site.

I have tried both 6.x-dev and 5.x-dev on my site, but I can't get the page http://my_5.7_site.com/sites/all/modules/smartcache/load.php?file=misc/d...
to display the same as
http://my_5.7_site.com/misc/drupal.js

I think the problem is that I can't get the baseDir value right.

Here's what I did:

1) put the SmartCache module in sites/all/modules (because that's where all the new modules in 5.7 go)

2) set 775 permission on the "cache" folder (I have also created an identical folder in the root, just to be on the safe side)

3) I didn't change anything in offset, because I hope that for now the default is ok

4) I believe that my problem is in getting the baseDir right. I have tried every imaginable combination:

$baseDir = '/';
$baseDir = "/";
$baseDir = '../../';
$baseDir = '../../../';
$baseDir = '../../../../';
then I contacted my host, which is Hostmonster
they said that I should use
$baseDir = '/home/username/public_html/addondir' (notice / in front and not after)

(obviously, I changed the words username and addondir to my own)
I tried every imaginable combination
and even the same with " " instead of ' '

But I still can't get the drupal.js to display

Additional information: my website name is not the same as my cPanel username. My website is not located in public_html, but inside a folder public_html/mywebsite (because in my public_html/ folder I have another_website.com running)
ALSO:
in my FireBug I can read that in the generated html header my aggregated CSS looks like this:

<style media="all" type="text/css">
@import "/files/css/29942b83a92cd08301be89f9c22f85ec.css";

I have read the instruction in both 6x-dev and 5.x-dev README files, but I still can't display
http://my_5.7_site.com/sites/all/modules/smartcache/load.php?file=misc/d...