Changing Partitions

i have a 30gig c drive which i split into two partitons.
with xp on the front end using 9 gig as i wasnt sure it
was going to be ok on my system.
I also have me on back end of c drive 20gig.

is there a way to delete the me partition and allocate the whole drive to xp without losing my data on the xp side as this
os has a perfect install with everything running perfectly.

i partitioned the drive using partition magic.
please tell me i can as my me is infected with a virus that none of the vr's can do anything with i have been trying for days.
and nobody here has been able to help, although they have all
tried admirably and my thanks go to all who tried