Changing the signature name in system emails

[REM]

The person who set up OrangeHRM for us has left the firm, and I can't find a way to remove her name from the emails that the system generates. The system is user-friendly enough that I was able to pick it up without help, and have been able to approve leave, cancel it, etc. I've even managed to set up new hires. But I can't remove that name, and I can't see leave requests that have been entered for January 2011. I'm hoping someone can PLEASE help me with this.

Thanks in advance.

B.