Q2007 indicates that ING Direct accounts can be updated via one-step- update but ING doesn't support that mechanism. The following is from ING DIRECT.
ING DIRECT recently updated the way in which Customers download their account information into Quicken and Microsoft Money. From this point forward, you will need to log into your account at ingdirect.com and click on the DOWNLOAD icon in order download your account information to your Quicken/Microsoft Money software. You will no longer be able to download your ING DIRECT account information by logging into Quicken and/or Microsoft Money.