WS_FTP and Notepad are just programs

WS_FTP95 is an FTP program that allows you to upload files to the internet and in this case, your website.

Notepad is just a basic file editor. (that is great you are writing HTML by hand)

the versioniing thing that you are talking about is related to saving files.

when you save a file, as you doing save, or save as? if you do save as, you may be creating copies. and that is what index[2].html is, a copy of in this case another index.html file

when you upload it, if you don't over write it, it may create a copy there.

so I don't know where you are making the copies (it could be accidental or inadvertent too)

but you can rename them.

you can press f2 or right click then rename, to fix the naming convention.

let me know if you have any other questions