Yes, I know that feeling, quite hard to find and famous IB customer service.
PHLX:
XDE (Euro) XDB (Gbp) XDA (Aud) and so on.
Can see quite good quotes on:
www.optionmonster.com
CME / Futures Options:
Enter EUR (GBP, AUD...) into TWS, then select "Futures Options" from the pop-up...