spyware blaster explained btw:
Not really. SWB blocks a bunch of Active-X controls that can be used for malicious purposes. Opera does not support the use of Active-X.
But Opera is considered an extremely safe browser, much safer than IE or Firefox. This in not necessarily because Opera is somehow coded better than the others, it is because Opera has so few users that the malware writers don't bother to try and exploit it,
So enjoy the incredible speed of Opera and don't worry!