The only probation period with Google Checkout that we're aware of only has to do with payouts of checkout payments you receive; payouts happen 14 days after the payment during the first 60 days of your GC service, then Google reviews your account activity to adjust your payout schedule accordingly.
However, I did find this item in the Google Checkout documentation:
Intangible and digital goods and services:
If you sell intangible goods and services, please take care to mark completed orders as 'Shipped', as this action in your Google Checkout account automatically triggers a confirmation email to your buyer and completes the order
However, if you are selling digital content or services, you do not need to mark it as shipped, as digital orders should be delivered immediately after the purchase is successful. Digital orders will automatically be marked as shipped when they're charged.
ExcelHero, it appears none of your product settings in Seller Admin use digital product features (Single File Download, Package files..., Redirection, or Send Stored/Generated Codes), nor do they have Shipping/Buyer's Address enabled, so GC is treating them as "Intangible goods/services" -- i.e., neither shippable nor digitally-delivered. Offhand I'm not sure if this technicality is new, but it's how they're doing things now, so I will update our documentation accordingly.
You may wish to enable Redirection in each of your products' settings and paste your registration URL (or other suitable landing page URL) as their Redirection URL on the next screen, so GC would regard these as Digital products. I also notice you have the "Send Transaction Data to a URL" setting enabled for each of your products but nothing in their "Payment Variable Information URL" field, so you should also disable the "Send Transaction Data..." setting as well.