seamless tiling with no further edit to the image?

Hi everyone
I'm new to FF but am having so much fun with all the possibilities.
I'm wondering if it is possible to use filter forge to create a seamless tile from an image with no further additions.

what i mean is, suppose i import an image from photoshop which is 'perfect' and i do not wish to apply further edits to, but it does not tile seamlessly. can i use FF to match up the edges (or whatever magical mojo the program pulls off) to take my image and make it tile, without any further additions from FF apart from the symmetry?

Thanks all, input is greatly appreciated

I have both ImageSynth and Genetica 3.5. They both work but Genetica has more ways to make a photo seamless.

Thanks both for the advice.

I tried Imagesynth but to be honest, never really understood the program, I didn't find it very intuitive, but I will have to apply myself to learn.

Genetica looks amazing, but AFAIK it is Windows only? A bummer for me, I'm a Mac guy

Guess I better get back to trying to make imagesynth work..

thanks to both oncemore