All your .dbx files should be found if you follow the instructions below.
Make sure show hidden files is enabled under Windows Explorer. Go to Tools (Menu) -> Folder Options (menu item) -> Views (a tab) -> Show Hidden Files and Folders (a selector in the list you can see)
Go to C:\Documents and Setting\[User Name]\Local Settings\Application Data\Identities\[GUID number, a long number]\Microsoft\Outlook Express\
If you copy all these files onto a USB stick and then put them on another machine in the same place you copied them from you should be able to access them.