Yes, DataPage+ will work with Windows 7. I would HIGHLY recommend getting assistance from tech support on this. Windows 7 is the issue, not DataPage+. Seems that the whole file structure has changed and it's best to get help. That's what I did and DataPage+ is working just fine for me.
I had issues creating a new database. It was due to a previous version of SQL on my computer. Had to uninstall all of them and then install the one that came with the download and IT to adjust the TCP/IP issue. Haven't had to play with it yet but coming from an old version, kinda curious to what it can do.