Hello jkgourmet,
I am happy to help you with your questions:
Question: 1. In the right narrow sidebar, there are two widgets: Meta and Archives. I would like to remove them both (but be able to add the archives back later). I've tried to do this in the Widget area of the dashboard, but I wasn't able to figure it out. Ideas?
Solution: To add / remove widgets, you must visit the widget area of your admin. To access, look beneath Appearance in your left sidebar and click "Widgets". On this page you will see the available widgetized areas. If you notice that the Meta and Archives widgets are not applied to any widgetized area, you will need to view the sidebar.php file and remove the code manually. Look for:
<div id="narrow-right">
<ul>
<li class="widget">
<h2 class="widgettitle">Meta</h2>
<ul>
Question: 2. Is there a template for a page and/or post with no border at all? I will need this for ecommerce pages.
Solution: You can only apply a custom template to "pages" not "posts". Custom templates are created in the theme files and applied by using the "Template" option located on the right side of the Page Editor, under the "Attributes" section. Please note: If there is no custom templates available, this option will not appear
Question: 3. Is there an easy way to limit the number of posts that show up before the "older posts" notification?
Solution: Sure, look beneath the "Settings" section in your admin sidebar and click "Reading" you will see: Blog pages show at most which is probably set at 10posts - adjust this to the number you prefer...
I hope I have been able to assist,
Warm Regards,
wp-coders.com