Is it EZdrive, MaxBlast or Disk Manager?

I have a 10G HD that is partitioned into C:, D: & E: (by someone else). I want to remove the partitions and put the drive in another machine that does not recognize the partitions (the three drives look like very large files in the new machine.) I looked on the drive and Partition Magic is not installed, so it must be EZ Drive, MaxBlast or Disk Manager.
Both machines are W98SE.
Questions:
1. How can I merge C:, D: & E: safely?
2. How can I safely and permanently remove the partitions?

Thanks,
Hope