upload image to different directory?

Hi. I,m totally new with wordpress.
I inherited a site where a function is broken because of a version upgrade of wordpress.

Now i’m looking for a plugin that lets me upload pictures (higres) and thumbnails to a directory of my choise.
It’s a php script that will display thumbs and click on thumb dowloads highres picture.

The images must have the same name. And be put in two different directorys
/press and /thumbs

As I understand it the default location /upolads is where all the media is uploaded.
And that is fine for the rest of the pictures. But for the press images I need a different directory.

I have searched some of the plugins but cant find what I want.

So If someone knows about something that can help me I will e glad.

Regards
olle