Alohajec,
Trying not to sound like a broken record here.....but, under the HSBC make Foreign Currency Transfer to non-HSBC bank (which is what we are trying to do in this situation), you have to choose a Bank name from the drop down list given on the page. E*Trade is not listed there. So despite having the E*Trade HKG USD acct number that you have kindly provided, the only place that E*Trade is listed under any transfer pages on the HSBC website is under BillPay....using HKD transfers only.
Anyway, thanks for your input. If you can find where to do a foreign currency USD transfer to E*Trade on the HSBC website, please provide the info.
FYI