In reply to:
Already, but nothing happens :( .. Maybe no chance in this hosting...
Well, to the degree that it works at all, it could probably be made to work with DreamHost as well as it could with any other host, but there would likely need to be some re-coding.
Without thoroughly reviewing the code, or knowing what errors you are actually seeing (and are in your log), I suspect that there may be issues with PHP-CGI, PHP5.21, MySQL 5, the absence of certain functions in the DH PHP installation, etc. or any combination of the above.
It would take somebody interested enough in the script, and skillful enough with PHP, the DreamHost environment, and MySQL to sort it all out. 
There is a huge amount of discussion on the WordPress forums about this plug-in (146 posts!), and the general trend of the 30-40 threads I've reviewed are *not* encouraging. 
--rlparker