Toshiba Digital Frame

How can I control a 2nd laptop from my main laptop?
I am trying to use an old HP as a digital Photo Frame. I want to be able to completely control it from my other 2 laptops so I can change the pics and stuff remotely. Can this be done ? If so please explain in as much detail as you can. I have remote access to the old one now and I can put pics in the public files but I then have to use the old lappy to set the pics or do a slideshow.
Old HP running windows 7
new HP and Toshiba are still on Vista (soon to upgrade them both)
try teamviewer.com i use this on just about all of my computers, its free forever and u can transfer files from computer to computer. its fast, and you can change the appearance and set your own password to log on anytime, u can always have it running so when ever u need ur computer, and u only have ur other one, you’ll be able to access it. it is a great application and i highly recommend it. it is great and has never let me down.
Ramka Cyfrowa Digital Frame Toshiba Q80 Wideo recenzja