RSA Key Installed Now How Do I Protect Web.config SQL Conn?

We have our RSA Key installed by DiscountASP support. Now how do I protect our web.config SQL Connection password?

We have .NET 3.5 aspx web site.

 

I followed the online tutorials concerning RSA and now have this error on web.config Line 27 when I go to our web site (ie... www.ourdomainname.com).

Line 25:
Line 26: <connectionStrings configProtectionProvider="MyRsaProtectedConfigurationProvider">
Line 27: <EncryptedData Type="http://www.w3.org/2001/04/xmlenc#Element"
Line 28: xmlns="http://www.w3.org/2001/04/xmlenc#">
Line 29: <EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#tripledes-cbc" />

Here's part of the web.config in question:

<connectionStrings configProtectionProvider="MyRsaProtectedConfigurationProvider">
<EncryptedData Type="http://www.w3.org/2001/04/xmlenc#Element"
xmlns="http://www.w3.org/2001/04/xmlenc#">
<EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#tripledes-cbc" />
<KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">
<EncryptedKey xmlns="http://www.w3.org/2001/04/xmlenc#">
<EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-1_5" />
<KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">
<KeyName>Rsa Key</KeyName>
</KeyInfo>
<CipherData>