sc-60
Cooks on high for two hours then goes to low until you shut it off. Works great!
Yes, it's safe to use aluminum foil with CorningWare.
It is not recommended to use Corningware on a stovetop as it may crack or shatter due to sudden changes in temperature. Corningware is designed for oven and microwave use, not for stovetop cooking.
How do I adjust heat on 6 qt. Corningware SlowCooker?
Yes the orange clear glas corningware can be used on the stove (I have the brown clear corningware)
No, the design on corningware cornflower pieces is not easily damaged. I have found it to be suprisingly durable.
crockpot
Yes,ESP if you have been putting it in microwave over long time, I am speaking of corningware from 70's from experience
These models have been discontinued so replacement parts are no longer available from Corningware.
Absolutely, yes. A crockpot bakes an excellent cake, I have done it several times. You will need a recipe to get the best results, some crockpot cookbooks include them (mine does).
Easy recipes for the crockpot could be found by purchasing a cookbook for crockpot recipes, going to the library and copying some or asking friends and family.