You aren't alone...lots of people have this same problem. Most likely when you saved the picture...you saved the thumbnail image and not the largest size. The best way to save the images is to click on the image so that it opens up in the DISigners Photobucket or shared file account.
In photobucket you will need to click on the first image. Then when this opens up...it still isn't as large as it can be to copy and get the best quality image. If you wave your mouse over the image...you will see some gray tabs above the picture. The tab on the left says something like "largest size". Click on this tab and then when the image opens up...copy and paste it to your computer. Or you can left click and hit "save as".
In shared files you will need to click on the image and then click on the "download button" to save the largest size image.
Always make sure that you aren't saving the thumbnail picture. Anytime you try to increase a picture size larger than the size that you saved it...it will become blury.
This should fix your problem.