Carole,
I am new, too, so my advice should be taken with a liberal grain of salt.
That said, I am such a huge fan of mary janes that I'd hate to see you take them back without thinking whether or not you can wear the kind of socks you want to with them.
So, here is a photo tour through how I do and don't wear socks with my vast collection of mary janes:
-To my eye, the only really bad sock option with mjs are socks that hit anywhere in the ankle up to mid-calf area. It just looks wrong to me:
http://picasaweb.google.com/ms.....0119545186
But, if you're wearing pants that will cover most of your socks up, you can wear whatever socks you want:
http://picasaweb.google.com/ms.....5481129986
Even though I haven't chosen the best hose/mj combo here, I do think you can wear tights and hose with mjs:
http://picasaweb.google.com/ms.....9317137154
I wear my mjs all the time with footie socks. They keep me comfy, and almost no one sees them:
http://picasaweb.google.com/ms.....2213159554
And lastly, I think that with the right combination of hemline/length and sock height, that trouser socks can sometimes be rocked with mary janes, but I'm not totally confident about this look:
http://picasaweb.google.com/ms.....7570266450
That was probably a more detailed answer than you were looking for, but I obviously love mary janes a lot. Good luck deciding whether or not to keep yours!