Buttons Button explanation

Hi, I downloaded the charitytrust website template, and have almost finished up customizing it. However, I am having some difficulties editing the text on the button tabs that read: "Home; About us; Download; Journal; Directory; Culture; Community; Contacts". Essentially I have the same problem posted in an earlier topic here: https://freewebsitetemplates.com/forum/showthread.php?t=8596 . I've attempted to search this forum and figure out how to do it myself, but have been unable to find the complete answer. I downloaded GIMP to try and do it, but that only led to more frustrations haha. I need the tabs to read:

Home --> Home <!--same tab no change>
About us --> About us <!--same tab no change>
Download --> Services
Journal --> Staff
Directory --> Gallery
Culture --> Directions
Community --> Brochure
Contacts --> FAQs

Also, if there is a way to have the Charity Trust logo at the very top to instead read "J&R Fleet Services", help with that would be appreciated as well. As of now, I just deleted it.

If someone could help me out, either by just doing it for me (if you have the time), giving me tips on how I could myself, or simply pointing me in the right direction, that would be a lot of help.

Thanks so much. im noob (great template by the way : ) )

 

Cool. Just what I needed, thanks. I was trying to do this in GIMP, but well, I'm just getting started with it. Thanks again for the help.