Please see this document on page 26 and on for the sample.
What can be not obvious from this document is only the fact that
nokia 7650 uses URL as an address of MMS proxy-relay. This fact is mentioned in brochure supplied to handset.
It's not strange that your phone is asking for APN. You put there
"wap.orange.co.il" that does not look like it. You have to ask your GSM provider for correct one.
See what I am using for MMS purposes