Yes, please keep the topic of your post in mind when creating a thread title. I've just edited this one now, as an example. To answer your question, yes, if you can check your email via your PS3, you should have no problems.
Ok... so you are saying that you didn't receive your activation email? It probably got stuck in a Junk mail/spam filter. See our account activation help page for more information. You'll also find a link there which will have the email re-sent to you.