Still can't figure it out? Read carefully.
Go to Google Maps market page OR access in Settings > Applications > Manage Applications; Tap "Uninstall Updates"
You ask "what updates?" - The updates for Google Maps, as if you follow the directions you are either looking at the Market page for Google Maps, or the Google Maps page in your applications menu.
Either way, the answer to your question was self-evident. Sorry to be a jerk, but it was a REALLY STUPID question. You can only do so much to help people who can't help themselves.
How To Ask Questions the Smart Way
As far as Street View not being visible in the applications page: No shit. That's why I recommend uninstalling using Titanium Backup. But I guess you skipped the first step? Usually it's recommended to FOLLOW STEPS IN ORDER!
Alternatively you can use Root Explorer and delete Street.apk from /system/app. You must be rooted to do either of these, which is why we're in the "All Things Root" section of the forum.
Got any math homework I can do for you now?
EDIT: If you didn't have Street View installed in the first place, then you would skip step 1.