Thank you Hamish. I do have an account summary but a lot of my sold summary has been removed from the database, I'm told. Some of the listings from 2004 can be retrieved from the listing id, but about 2/3rds just server error 500.

I'm after the purchase ids from when they were first introduced (2012?) and the Ping history is only a few years worth. I have the listing ids and trying to find the link to find the purchase info from that...

Oh actually, I figured it out after all that.It's https://www.trademe.co.nz/a/cart/xxxxxxxI can get the id from the Ping Transactions page.