Out of Scope Help Needed.

Although this is an ME newsgroup I would appreciate you
helping me resolve
a problem with my daughter's XP Pro machine. Several days
ago her system was
infected with "System Security 2009" bad guy. An attempt
to do a System
Restore to the previous day was unsuccessful. The Restore
process would get to
the "Confirm Restore Point Selection" window but go no
further.

Subsequently, using corrective actions found via Google, I
have removed any
files that I could find related to "System Security" and ran
MalWareBytes.
Since the infection seems to keep her Avira AntiVirus from
running I also ran
Trend Micro's online scan.

To make a long story short her computer is still messed up.
We can't access
the internet while in Normal Mode, her Avira is not working,
her System Restore
will not go past the "Confirm Restore Point Selection"
window in neither the
Normal nor Safe Mode, and as the topper she does not have
any recovery discs
of any kind.

Is there a method whereas I can force the System Restore to
proceed past the
"Confirm Restore Point Selection" window and complete its
process?

Thank you.