Merging two ext3 partitions

[Nick]

I have four partitions on a 120GB drive, one 90GB for Vista, two ext3 partions which are 8 and 9GBs and one 512mb linux swap partition. I want to merge the two ext3 partitions into one to install ubuntu. I'm using gparted but am struggling to get the two to become one.

Thanks.

edit: Sorted it out. Close if mods wish.