Under themes and customise on the home page there is a background image that I need to replace. I haven’t been able to do that. I have saved the new image as a snippet, but now what?
Avoid “HELP” non emergencies , it’s a good way to get ignored since everyone on the forums wants free help for their business.
Others can’t see or know what you’ve done they don’t have your code they don’t have your store setup or steps you’ve taken.
You have to be MUCH less ambiguous so that OTHER people know what you have done and how and with what.
Show code, show the store, show the theme, etc etc.
http://www.catb.org/~esr/faqs/smart-questions.html#code
Good luck.
shere your store link so ill be beter understand and tell me that which theme you are using