Reports for Low disk space alerts in scom 2007

Dear Experts,

Is there any possible to get the Low disk Space alerts reports in SCOM 2007 R2.

1, I need reports for Last week SCOM sent alerts on Low Disk space for the servers list

2, Likewise I need SCOM Low disk space alerts reports for last month.

Can somebody please explain me with the steps and I played much with Reporting pane.

Thanks,

Saravana