Before e-mailing biteSMS, Please try biteSMS > Settings > About > Reset All.
If that does not work, try biteSMS, Settings, Recover
Yes, using the evasi0n Jailbreak and biteSMS Release 8.0, currently on beta. See forum for beta installation details.
See Control Center (pull up Apple feature), check the Message Alert toggle is ON.
Yes it is!
After a win by the Electronic Frontier Foundation (EFF), jailbreaking your iPhone is now explicitly a permitted fair use under the DMCA, so jailbreaking is now unambiguously legal!
See article
Yes, click here
This information can also be accessed inside biteSMS, Settings, About, Features Help
If you are interested in developing a theme for the biteSMS app, Quick Compose and Quick Reply, then start here.
biteSMS would love to work hand in hand with all tweaks, but with regular up-dates to most apps, it's almost impossible to keep up.
Here's a list of apps with known compatibility issues in iOS 7.
 - Bright
 - CleverPin
 - Cydget
 - Flagpaint7
 - iCallAnnounce
 - JellyLock 7
 - LockHTML3
 - MultitaskingGestures
 - Springtimize
 - SubtleLock
 - Swipe
 - tsProtector
Simply uninstall if you have one of these apps and see first if it solves your issue.
Looks like a file permission issue.
Install iFile from Cydia, then delete (right swipe) the following files and directories:
/var/mobile/Library/biteSMS
/var/mobile/Library/Preferences/com.bitesms.plist
/var/mobile/Documents/biteadprefs.xml
Please email us again.
You must put the subject as "NOT FAQ" otherwise you'll just get the auto-reply message again!