Hi this is my first post on this forum and Im hoping someone can help me. I ususally work
in srgb for printing etc and am submitting images to Alamy . Have just noticed that they want Adobe rgb so does this mean that I cant use any of the image sI already have? Also can I switch between the two and how ? I want to continue with srgb as Im happy with my lab but also want to shoot for stock. What does everyone else do? Any help appreciated

You can convert the image to Adobe RGB with the option "Convert to color profile..." in Photoshop. Of course, this would not get any color it wasn't in the sRGB version. Adobe RGB is a bigger color space, so the correct way to do the conversion is shoot in Adobe RGB, and then convert to sRGB.
I think the best option is to shoot raw, then you can select the color space any time you convert the .raw file with Adobe Camera RAW.

Don't know an answer to that one but I always shoot sRGB as thats what the places I shoot for normally want for newsprint and AP.
Oh, and the stock place I have photos on takes either..

JS