Opera is now at 9.52 so please get your update now.
http://www.opera.com/
I have been using the Secunia PSI tool and it just warned me that my version was unsupported and potentially vulnerable ;)
You might like to check it out?
https://psi.secunia.com/
OK it's a beta RC3, but I have been running it on XP SP3 for a little while with no problems.
Free for private use :)