Urgent help please! 2 Antiviruses on my phone!

Hi friends,
I accidentally installed 2 antivirus on my phone Nokia 5700.
One was a Kaspersky trial version for which the license expired yesterday... So I downloaded a Trend Micro MobileSecurity 3.0...

Now foolishly, I installed the new one without first removing the older one. Now the phone is simply hanged. Nothing comes up on the screen
It seems, Both the antiviruses are scanning online everything (or each other) and holding the phone itself hostage between their war!
I'm not able to do ANYTHING on the phone now...
I tried removing & replacing the battery, then switched on again, but both of them start in the background (they're both installed in the internal memory), and start their war again
Can someone please help me somehow to remove one of those antiviruses?