How do I check colour profile?

[RJL2005]

I have recently ordered a batch of prints from an on-line printing house. When I received them I was not happy with the colour or brightness. I have queried this and have been asked to check that the colour profile is set as sRGB-IEC61966-2.1 as the printers seem to think that sRGB (Canon) has been used

If I open the images in CS3, Edit, convert to profile..., The source space shows as sRGB61966-2.1.

Does this seem right, I'm getting a bit confused:shake:

Thanks