I'm running:
Joomla v2.5.24 Stable
Joomla Platform v11.4.0 Stable
PHP v5.3.24

Template is RocketTheme Oculus running:
Oculus v1.2
Gantry v4.1.25

I'm having trouble with sizing the article images. I have changed all options in K2's Global Parameters as well as the Category itself and all subcategories to inherit the Categories Parameters as well. With every option to be the same image size, and reuploading the image after the changes, it still will not take affect. The image is way too large still.

Please take a look at the following page and see what I mean...

marylandwrestling.com/index.php/roster/item/1-christian-york

Further more it looks like the article menu that brings you to this page is also displaying an image too large...

marylandwrestling.com/index.php/roster

It's almost like it's forcing a 100% width on the images.

I've explored the templates involved and I cannot find any image-wise that would force a 100% width or a size over what I'm current requesting.

Please help, I have a deadline of Tuesday, September 9th.

These are template related issues.
The template developer has used !important attribute which override K2's sizing.
You should ask them how to resolve this issue.