Import Excel Into SQL 2005 Working In Development But Not In Production

I have a simple code that uses a the file upload control to read an excel sheet and upload the data into a SQL 2005db.

I'm using Visual Web Developer and Sql's express edition to test it.  It works fine when I test.  However, when I push it up to the production server and try it via the any other pc it does not.  The page loads fine.  However, when it starts to upload it errors out.

Any reason why?  I've never seen this happen.

Here's the code.  Thanks in advance. Protected Sub BtnUpload2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles BtnUpload2.Click
UploadTextDocument()
End Sub

Private Sub UploadTextDocument()
Dim location As String = FileUpload1.PostedFile.FileName.ToString
' Connection String to Excel Workbook
Try
Dim excelConnectionString As String = String.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties=Excel 8.0", location)
' Create Connection to Excel Workbook
Using connection As Data.OleDb.OleDbConnection = New Data.OleDb.OleDbConnection(excelConnectionString)
Dim command As Data.OleDb.OleDbCommand = New Data.OleDb.OleDbCommand("Select BuilderID,SeriesID,OptionLevel,CommunityID,PhaseID,PlanID,ElevationID,OptionID,CurrentSalesPrice,LocalComments,Active,DateAdded,DateAvailable,DateInactive,SalesPriceEffective,SalesPriceExpires,PreviousSalesPrice,CutOffNotBefore,CutOffNotAfter FROM [Data$]", connection)
connection.Open()
' Create DbDataReader to Data Worksheet
Using dr As Data.Common.DbDataReader = command.ExecuteReader()
' SQL Server Connection String
Dim connectionString As String = ConfigurationManager.ConnectionStrings("HbAdminMaintenance").ConnectionString
' Bulk Copy to SQL Server
Using bulkCopy As SqlBulkCopy = New SqlBulkCopy(connectionString)
bulkCopy.DestinationTableName = "ExcelData"
bulkCopy.WriteToServer(dr)
End Using
End Using
connection.Close()
End Using
LBError.Text = "The spreadsheet was successfully uploaded."
Catch
LBError.Text = "There was an error. Check the spreadsheet for correct format."
End Try
End Sub