iPhoto library was deleted, had me create a new library. Went into Finder & don't have the "Masters" folder. Where are my original photos?
I think ...


That's a bad beginning. You need to know what you did.


  I hit create library, and all my photos were deleted and I was redirected to iPhoto's introduction page


When you entered a name, did it ask "___ exists. Replace?"


  ...go to iPhoto on Finder...  the names of the folders I have are: _CodeSignature, _MASReceipt, Frameworks, MacOS, Library, PlugIns, Resources, and XCPServices.


That's the iPhoto application. Not the iPhoto Library. Look in Home -> Pictures for something like "Theresa's iPhoto Library" and double-click on it.