stm32F103 usb driver

Hi,

    I have tried to install the STM32_USB_FS package and in indicates it is installed. The are three other packages required that have also been installed. However when I click on the example project it is missing files from the uilility directory and when I check to see if it is installed properly I get removed in red?

Any ideas on how to fix this? I'm running Crossworks ver 4.7.

Is there any Crossworks example code to see usb in perhipal mode working?

Thanks

Adam