How to show quota info in squirrel mail

[juanfernandez]

I am configuring a webmail for my users using squirrelmail in a dedicated website (small web in an spanish highschool). Due to ISPConfig way of setting the users quota, the squrirrel mail plugin quota doesn'work-or, al last, I am unable of getting it to work.

Could any of you, gentlemen, give me a hint about how to add a simple php code to write in the squirrelmail's main screen the quota value?

Or, better, a way to get usable the quota plugin?

Thanks