Enhance low res images into high res images

Closed - This job posting has been filled and work has been completed.

Job Description

We have a few images that we will putting on vistaprint so that we can have them printed as posters

The images we found are not suited for vista print as per their recommendations

This is the message error
Resolution Warning
Your selected photo(s) have low resolution and may appear grainy or pixilated when printed. You may choose to use the photo(s) anyway or upload a different image.

We have 3 images we wish to have optimized for printing
http://imageshack.us/photo/my-images/827/cellphonewaterdamage.jpg/
I have provided a link to a sample image, the applicant should provide us with an optimized version of this image

The best candidate will be paid for all 3 images