Downgrading wifi driver

Hallo, to cut a long story short, sometime ago, updating my wifi driver has introduced a bug.
(the long story bug 11479.
Newer upgrades haven't fixed the problem.
This seems to be a driver issue.
I don't know how Broadcom goes about their drivers, but they don't seem to care much, whether they work properly, or not.
Anyway...
I think that downgrading to an earlier version of the free driver should work.
But I have no clue how.
For starters... which rpm of Mageia _3_ has the free driver for BCM4313 broadcom wifi card?
(the long story bug 11479.
Newer upgrades haven't fixed the problem.
This seems to be a driver issue.
I don't know how Broadcom goes about their drivers, but they don't seem to care much, whether they work properly, or not.
Anyway...
I think that downgrading to an earlier version of the free driver should work.
But I have no clue how.
For starters... which rpm of Mageia _3_ has the free driver for BCM4313 broadcom wifi card?