Icons at the bottom - small bug :)

[mikosoft]

At the bottom of the forum there are envelope icons with explanations what they mean - new posts, no new posts etc.
These match icons used left of the topics. Forum icons however are different (MP logo)  but the same envelope icons are used for explanations.
Just a little buggie I suddenly came accros

[LPChip]

Yeah, thats basically because normally the bigger icons are the same as the smaller icons exept for their size, not its content. phpBB does it that way. I guess I could do alot of work to fix it, but I'd rather tell the one person that doesn't understand it what it exactly means...