hello everyone! I seem to have a glitch with my Breton Vampire on my xbox 360, when I turned to a vampire, only one eye was red the other was normal, is it normal or...? please help!

That doesn't seem normal to me, however, it may depend on which color your character's eyes were set to during character creation at the beginning of the game. There are settings (in character creation) where one eye is a different color than the other or one eye is blind (completely white). This may have some effect on how vampire eyes show up in the game. Additionally, there are several bugs with the appearance of base game vampires that are corrected (changed) with the additional of the Dawnguard DLC.

I actually do not have the Dawnguard DLC, the color of the eyes are actually quite normal, like black pupils, one of the eyes will be red (left eye) and the other eye black (right eye).

I figured that you didn't have Dawnguard from your description in your original post. I'm also assuming you're playing as a male character, because female character's eyes are often bugged in the base game, where they don't even change color at all or always would turn a greenish color. As I recall, there may have issues with eye color change on male characters as well, so the issue you are experiencing may be quite "normal" (even though it is likely a mistake made by the developers), depending on your choice of eye color for your character at the beginning of the game. See http://www.uesp.net/wiki/File:SR-NPC-Vampirism_Comparison_Breton_Male.jpg for a comparison between eyes on a Breton male (non-vampire [left], vampire [right]). Other comparisons can be found on http://www.uesp.net/wiki/Skyrim:Vampirism. If you were to purchase and install Dawnguard, the eyes on all vampires should always be an orange or yellow color.

Thank you.