I know today is July the 4th and this won't help you or be of use this year but save it and keep it for future use.
Shadowhouse Creations Patriotic Pattern Set contains 13 JPG pattern files and also included is a Photoshop PAT file which contains all 13 patterns which were made in Photoshop 7 and is compatible with Photoshop 7 and newer and Photoshop Elements also. Caution large file.
** Tested and works in Photohop 7 - CS3 - CS6 and Elements 9. **
Hopefully this may be of some use, have fun.
Please don't post these on other sites for download or count them as yours.