Perhaps I'm just not unzipping and pasting the *.rb files properly in my Plugins folder. Also, though, I do see references to Sandbox and other Pro only capabilities/utilities and was assuming they would not work in Basic, because Basic does not have those certain utilities that Pro does. Frankly, I've done a lot since v5 in drawing for my woodworking projects, and have only recently begun seeing the blogs and references to plugins that are becoming more common.
From what I see, those of us who don't wish to program really appreciate the work plugin developers do. I'll just have to revisit my install and paste procedures and perhaps download and start from scratch on the plugins of interest. If I find specifics that I don't find working, I'll certainly post and inquire further.

I sent a post to mikel@skethucation.com, and he suggested it a good idea that I start a thread here on the Newbie site on the subject of plugins for the Basic/Free version of SUv7, not Pro version. Thus,...

I am an intermediate to advanced long time user of SU, currently user of SUv7 Basic/Free version, not the Pro version. I know there are things in the Pro version that I could put to use, but I just can't justify the price, since I am retired and merely an advanced hobbiest in woodworking, and haven't the budget nor real use for the Pro version most of the time.
Anyhow, I am very interested in putting to use some of the plugins that work with SUv7 Basic. Is there a listing and source site anyone might direct me to for those plugins that work in the Basic version, which obviously would work as well in the Pro version. However, the converse is not always true - that is, plugins that work in the Pro version do not always work in the Basic version. And, the blogs never seem clear at the outset whether the procedures are for Basic or Pro, thus I waste a lot of time looking over descriptions and then find the plugin apparently only works in Pro. Besides directing me to a site for such a listing and download, perhaps blogs regarding plugins should begin with a reference to Basic and/or Pro for those of us with only the Basic version of SU.