360 Achievements?

[Prons]

I know it'll be quite some time before I can even think of worrying about achievements, but, I've got a bit of a problem.

See, I have a main xbox live account, and I have all my gamerscores friendlists and whatever on it, and when I first played FFXI back in 2006, I created a PO account and linked it to my main xbox live account, after I unsubsribed, sold the game, and later realized "I wanna play final fantasy again," I went on it and it told me my 360 account was already linked to a PO id, after trying and being unable to find a way to resolve this problem I just decied it'd be easier to create an xbox live silver account, and I rolled on from there.

Now, I figure I'd ask now instead of later, when I earn an achievement, is there anyway I can somehow unlock the achievement on my main xbox live gold account? Or am I just gonna have to accept defeat?

[Malevolent]

Defeated!!!