Hi,
If you only receive payment through PayPal you will be able to find the sales via the 'history' tab in your account.
You can also go to the Account tab on your My eBay page, then Seller Account and there's a drop down list to view invoices going back up to 18 months.
The actual description is only visible for 90 days - after that it's removed from eBay database.
Not sure if it's permanent or a temporary glitch with goofbay, but last few days it's only been 30 days.

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