A one-time report can be created by the button On-demand report in the SpamExperts control panel. A report can be made for the last day or the last week; other reportings are not available. The report is sent by e-mail to the address you supply.
If you want a weekly automated report, you can configure this in Manage settings. Those reports can be sent to one or more recipients.
You can read more about reports in this article from the SpamExperts Knowledgebase: