I'm using myspace to get traffic. I am driving traffic from my cloaked/forwarded url directly to my CPA landing page. Will the cpa be able to see that my traffic is coming from myspace doing this?
If you're linking directly to the URL you were given by the network, then yes they will see the referrer as being MySpace. If advertising on MySpace is against the networks TOS (and you can bet it is, not to mention against MySpace TOS), you'll get a call and have some explaining to do, at best. At worst you might have your account canceled as well as lose all of your commissions.
If by "cloaked/forwarded url" you mean you're using something such as TinyURL, NotLong or OffTo and similar to shorten / obfuscate your links visually, the real referrer will be evident to the network.
If, on the other hand, you are using a custom landing page first that then does the redirect, the network will not see the MySpace referral ... UNTIL they pay a visit to your referring URL and observe the redirect firsthand. Then you'll get that call and have some explaining to do, at best. At worst ... see above.
Tommy gave you a great suggestion, so give it a test to see for yourself.
I was hoping that this method could be a possiblity:
http://www.blackhatworld.com/blackhat-seo/cpa/33881-3-easy-steps-blank-your-referrer-information-hide-your-affilliate-manager.html but I've not yet tested it myself.
Best,
Sine
If anyone else wants to weigh in with better information, please do!