By today's standards your HDD is considered too small to bother with partitioning into two partitions.
Why not just make it a single C Drive?
The only way to resize your partition in Windows is to use Partition Magic which ($70.00) costs more than the price of a new 80GB HDD!
The easy and free method is to boot with the XP CD and delete all your partitions and start over.
I installed Windows XP Home on a barebones computer, and mistakenly made the partition for the C drive much smaller (1.96 G with only 33MB free) than the D drive (1.6 G used, 24.9 G Free). Now I keep getting low disk messages. I want to resize the partitions so that the C Drive is larger without having to reformat both drives if that's possible. The file system on the C drive is NTFS and FAT32 on the D drive.
CPU is 1.3 Ghz Athlon with 120 RAM. Appreciate your help.