Hi Bulhorn,
The 7 modes (in the Major scale anyway)are:
I - Ionian (normal Major scale pattern)
II - Dorian (Minor scale with a Major 6th instead of a Minor 6th)
III - Phrygian (Minor scale with a b2 instead of a Major 2nd)
IV - Lydian (Major scale with a #4 instead of a Perfect 4th)
V - Mixolydian - (Major scale with a b7 instead of a Major 7th)
VI - Aeolian (Minor scale)
VII - Locrian (Minor scale with a b2 & b5).
Each scale has it's own distinctive sound. You can play these in any key - for example in C this would be:
I - C D E F G A B C (Ionian)
II - D E F G A B C D (Dorian)
III - E F G A B C D E (Phrygian)
IV - F G A B C D E F (Lydian)
V - G A B C D E F G (Mixolydian)
VI - A B C D E F G A (Aeolian)
VII - B C D E F G A B (Locrian)
Once you start getting into the modes of all the other scales, things start to get even more interesting....
Hope this helps a bit anyway.
Cheers,
Essexbass