Can't Save New PHP files to my FTP

I’m really new to this so I appreciate any help.

I want to create a page on my blog (I use wordpress) which gives an alphabetical listing of links.

I found this:

and copied and pasted the code into a PHP file. However, when I try to paste the file into my FTP folder, it won’t let me.

I’m confused.

Please help!

How did you upload the file to your FTP folder? Did you use a FTP client or WebFTP?

Here is some info about FTP. Hope it helps