Question
someone in my building threw out a plant and I rescued it just before the hurricane. It just got two small yellow flowers and I found what looks like a small green tomato. What is proper indoor care, I only have south windows. Thank you. Gisele

Answer
Gisele
It helps if I know where you are located...I am in NJ...I'll assume you are in the USA...

Without a picture I can't tell for sure what the plant is...I will assume it is a tomato plant...Probably a type of cherry tomato...It should produce small red tomatoes...If it is a tomato plant it needs to be outside to be pollinated or it will not produce much fruit from the flowers...Tomato plants need a lot of sun light...
Other than that treat it like most other plants indoors...
Water your plant based on how much it weighs when thoroughly watered VS when they are ready to be watered again. Plants die from too frequent waterings, not from how much water you give them at one time. Pick the pot up and feel how heavy it is after watering it thoroughly. Don't water it again until it feels considerably lighter and the soil top of the soil is light in color. Depending on plant types, sunlight exposure and pot size plants will need water at many different rates from once a day to once a month or more...It is also good to fertilize it periodically with a good plant fertilizer (Miracle Grow, Peters, etc.)
Hope this helps.
Rick