omg...can ANYONE tell me how to fix this?

i was TRYING to get my sqlserverexpress mdf file to work with DASP. after reading very different KB articles....one of the articles mentioned "detaching" my database from my project. soooo.....i right-clicked my mdf file in visualwebdeveloper express and sure enough, there is a "detach" - so i chose it.
now wait.......there isn't a "attach" command in the list.......hmmmm.....how do i re-attach it?. it's still there....along with all the tables and data. when i try to run my app now (locally) i get this error:

An attempt to attach an auto-named database for file C:\Documents and Settings\James\My Documents\Visual Studio 2008\WebSites\WebSite1\App_Data\/Database.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.

i have no clue how to fix this. so now my app won't even run locally.
why is there no "attach" command....only a "detach"?

 

...Use the Server Explorer, Ctrl+Alt+S, and Add the connection again.
You can even use that to connect your local project to Access DB's.