First of all, i'm new to the web developement world. Just starting to learn.

First question.. I purchased a domain through cheapnames. Jimjupiterdesign.com. Does it matter whether i added a WWW to the beginning of that when i registered it? i don't remember whether i did or not.

Now my problem. I have entered zymics nameservers in at cheapnames, and i'm using my domain name jimjupiterdesign with Zymic free hosting. I created a index.html and only added a few words 'well hello there'. just a quick test to make sure it comes up on my browser. i then deleted that file, and uploaded a new index.html and image folder, which is the start of a quick test site.
when i enter http://www.jimjupiterdesign.com in my browser, it is bringing up the text 'well hello there' from the first index.html file that i DELETED. my test site is not showing up, although that is what is uploaded, and showing up in file manager. BUT, when i enter http://jimjupiterdesign.com without the WWW, it brings up my test site.

this is really confusing to me and seems illogical. what have i done wrong?

it seems to be working now. i guess i just have to be more patient and wait a few minutes for changes to take place?

i am still curious about the domain registration though. does it matter, when i purchase a domain name if i include the www. in front of my site name? i assume the answer is no