AFAIK v7.54u1 and v7.54u2 should work OK. Earlier versions will not work, and 8.0 beta does not0, at present, implement the any specific spoofing for this bank.
We have not yet been able to find out exactly why Wells Fargo blocks Opera. Attempts to find out have not been succesful. Some indications have been given in answer to other people's queries, but we have been unable to verify those (We also believe what has been indicated as the reason is not a problem with 7.5x). Sincerely, Yngve Pettersen Opera Software