A VIRTUAL LOCKER? Higher ed IT pioneer and University of Wisconsin-Madison CIO Annie Stunden is seeing her visions become realities at UW-M: Everyone should have a Web space for file storage, sharing, and collaboration. This fall, as a new crop of freshmen enter the university, along with their My UW-Madison Web portal they’ll have better- than-ever access and storage for digital files. My WebSpace, a system for Web-accessible file storage, retrieval, and sharing, debuted last