I couldn't figure it out in Quickbooks, but I managed to figure out how to do it through Paypal.
Rather than downloading the transaction data under Activity, I went to Reports and generated a series of Financial Summary reports (only works 1 month at a time this way) and set the currency to CAD (can set to whatever your home currency is) and it converted all the transations to CAD. I then downloaded a CSV of this data and uploaded that to Quickbooks.
Not ideal, but works well enough if you absolutely need to import international and multi-currency transactions.
Good luck!
.... Quickbooks, you REALLY need to get on this. This is beyond ridiculous that a currency conversion upon upload isn't the norm by now. Seems a pretty basic thing for ACCOUNTING software.
