I am not sure if this goes here, but say if you bought promos and then sold them, before the achievement packs were out, you don't get the achievements. Will you ever get them? Since you had them i think you should.

lol nope you have to get the items in your inventory

thats really not fair, you bought the items since you got a booster, and i bought tons of packs which include amber, helios, demolition, typhon, acid, hot pink, maya, shaman, plasma, pure, raider, supernova, and now i cant have ANY of the achievements...

lol bad luck

Reekondub: since the achievement system is new, it only gets you those items that you had since it got released.

I'm afraid that will be like that in the future, too.

So, in other words, ill never get the achievements that I earned? ... :/

You didnt earn them, that's why you wont get them.

Note: the "earn an achievement" term means to earn an achievement from the moment that specified achievement was released.

lol. k well that is unfortunate. question answered.