ToME: the Tales of Maj'Eyal

So i played this game back when it came out 4 years ago and unlocked some things, things i would like to be able to use now, but i recently bought the game with the expansions on steam and it only has the steam login and no option (as far as i can see) for logging in with my old account. is it possible to play with my old account in any way or am i going to have to make a new account and unlock everything all over again?

If you log in to you old account on te4.irg, you can link it to your steam account.

Well that worked, thanks for your help.