Salesforce module installed - but does not working i think

hi all,

I feel quite excited if I think about all those nice fetures from salesforce that can be used in drupal. Unfortunetley I can not test this module. I have installed it how it should be:
http://drupal.org/project/salesforce

I have installed "Salesforces php toolkit 13" as well. I don't know why but I get white screen while I am trying to authorize using email, password and token.

In the error log of apache server I have this:
[Fri Sep 18 14:47:04 2009] [error] [client 127.0.0.1] PHP Fatal error: Class 'SoapClient' not found in C:\\Program Files\\BitNami WAMPStack2\\apache2\\htdocs\\cms-test\\drupal\\modules\\salesforce\\salesforce_api\\toolkit\\soapclient\\SforceBaseClient.php on line 121, referer: http://127.0.0.1:81/cms-test/drupal/?q=admin/settings/salesforce

is this some common problem or only I am so lucky that I have it :) ?
Need your help soon.

Thanks in advance,
Marcin Stefaniak