Creation of part of a logo for a village magazine.

We have the artwork, but can't produce it in a form that won't pixellate when we try to use it in PagePlus (the publishing software that we use). It's particularly bad on the straight italic letters, less so on the curved letters. Can you recreate it so that it won't have the saw-tooth edges that appear at present?

I'm told it's a question of using a vector image (eg from Adobe Illustrator) rather than a raster image (which Photoshop produces), but my concern is that the output needs to be in the correct format to work in PagePlus.

Does this make any sense? Attached is the current version. Hoping it's just a quick job!