May I ask what you mean by "can't see the products"? do you mean on a order form (A) or ones you've paid for (?
If it's A: Ensure your currencies settings are set-up correctly in: /admin/settings/company/currencies/setup/
I recommend: Ticking Allow Client to Set Currency and Ticking Auto update currencies.
If it's B: Check if they are pending in the admin area, if not, go to the billing section on Blesta, click manage widgets, move order to the left, then check to see if there's a order pending, click the tickbox and click accepted, now go to the client page and check if it's pending now.