Customize report

[eldad]

Hi there,
I have an issue that might not be related to Vault but...
I want to customize my Vault reports, I have no problem creating a new report template with the info I want (.rdlc)
the problem I have is when I try to open that .rdlc file in Visual Web developer 2010 express.
I get no design view, just code view similar to this:

<?xml version="1.0" encoding="utf-8"?>
<Report xmlns="http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition" xmlns:rd="http://schemas.microsoft.com/SQLServer/reporting/reportdesigner">
<DataSources>
<DataSource Name="ReportAuthoringDataSourceConnectionString">
<rd:DataSourceID>fbb3fa13-b26a-4971-ba76-09df911e83cc</rd:DataSourceID>
<ConnectionProperties>
<DataProvider>OLEDB</DataProvider>
<ConnectString>Provider=Microsoft.Jet.OLEDB.4.0;Data Source="C:\My Documents\SampleVaultProDataSet.mdb"</ConnectString>
</ConnectionProperties>
</DataSource>
</DataSources>
<InteractiveHeight>11in</InteractiveHeight>
<ReportParameters>
<ReportParameter Name="Vault_UserName">
<DataType>String</DataType>
<Nullable>true</Nullable>
<AllowBlank>true</AllowBlank>
<Prompt>Vault_UserName</Prompt>
</ReportParameter>
any ideas why I can't get a Design view? I want to drop in a few charts...

help is appreciated