You are downloading the Valentine's Texter XAP file v18.104.22.168 for Windows Phone. Valentine's Texter is a free Kids & Family App: What's new?- Added more messagesSend your valentine random SMS or email on one click. You can also select message to send instead of random ... You can now download the offline XAP package file to install & try it.
Download Locations for Valentine's Texter 22.214.171.124 XAP file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Valentine's Texter XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.