Error when adding vCenter to chargeback

hy,

i have installed the chargeback on a Windows 2003 Server with SQL 2005 Express successfully.

When I log in into the webside, i want to add a vCenter Server. I get this error:

Invalid vCenter Server database. The vCenter Server database must have the following views: VPXV_HIST_STAT_DAILY, VPXV_HIST_STAT_WEEKLY, VPXV_HIST_STAT_MONTHLY and VPXV_HIST_STAT_YEARLY

On the chargeback database there are no such tables or views.

Have anyone an idea?

Thanks Andi