seems to be the url. I have not tried out yet. I do not find out the steps for Windows-7 in my machine. I am planning later to have a machine to install 2008 server R2 try-version(with role setup) for the virtual stuffs including another 2008 R2, in order to further my tryouts.
Based on my study, you can rent SharePointFoundation service, less than 10dollars a month. You can also rent SharePoint Server service, it is much more expensive.
Hopefully, it touches the issue. Thanks.