Connection To Database On A Remote Server

Here is my environment and problem:

 I have VWD 2005 and SSE 2005 installed on my local machine. I also have these installed on my Windows 2003 Server. I developed my database using SSE on my local machine but pointing to directory on my server. I have been developing the web app using VWD on my server. I now want to use VWD on my local machine and point to the project on my server. I am able to open the project. In order to access the database in the "Database Explorer" I use as my "Data Source", "MS SQL Server (SQL Client) and it attaches fine and I can see my tables and data.

 Now for my problem:

When I try to run the application "VIew in Browser", which login.aspx page is my first page, I get the page, but it doesn't inherit my master page which has the basic navigation and layout. Then after I try to login I get this message.
The file "W:BBAppApp_DataTimeTracker.mdf" is on a network path that is not supported for database files.
An attempt to attach an auto-named database for file W:BBAppApp_DataTimeTracker.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.

Here is a portion of my web.config file for the connection string.<connectionStrings>

<remove name="LocalSqlServer" />

<add name="LocalSqlServer" connectionString="Data Source=.SQLExpress;Integrated Security=true;AttachDBFilename=|DataDirectory|TimeTracker.mdf;User Instance=true" />

My website I started with the source code for the TimeTracker start kit and have added more pages and changed the sitemap.

In general I guess I need to know how to handle using VWD on my local machine, but accessing the project on the server. The reason I'm doing this is because my colleague needs to be able to access the web app too to add pages to the site.

 Thank you for any help.