citarella on 9th and 6th definitely carries lingonberry jam, and a bunch of other grocery stores just cant remember which ones. for lingonberres, i dont even know if ikea has them but that would probably be your best bet.
I actually see lingonberry sauce at a lot of markets where I shop - I'd try Citarella and Dean & Deluca. Murphy's, a small market at Madison & 92nd also usually carries it. I bet Garden of Eden has it as well. Where are you located?