Currently Being ModeratedDec 17, 2013 6:55 AM (in response to samanthamarie1225)
Thanks for using Apple Support Communities. This article addresses the issue of iTunes not recognizing your iPhone and may help:
If you're using Windows XP, Bonjour may not work due to firewall settings. This article covers that particular cause:
If neither article helps, any additional information provided such as Windows version, exact error messages, etc, may help.