If your Home is listed with an Agent, and it's in the MLS.? The only person that can upload those photos is your Agent. It's not uncommon to have homeowners provide Agents with photos. Owners know there homes better then anyone else and if you know of a selling feature in your home and want the Agent to embellish on that feature then you're really helping out yourself and being proactive. Most Agents will appreciate the insight you can help provide.
If your taking a picture with a smart phone; just MMS that photo to yourself. Then, send it to your Realtor and He/She can upload it into the MLS. If your taking the photos with a digital camera? Then, just upload those photos into your computer's hard drive like you would with any family photos and email those photos to your Agent.
Brian Head, Realtor
Law Offices of Joel Feinstein