If you open the seaclear program you'll see "File" in the upper right corner. If you click this you get a menu that includes "Chart". Click on this and choose "List All". You will get a list of all the charts Seaclear has registered. If you've only got a couple of large scale charts then something is not right.
Have you looked at the charts in your chart directory folder. It should be a long list of charts with numbers ending in .KAP and .BSB. If the .BSB charts aren't there it doesn't matter. Seaclear doesn't need them.
I don't know what you have on your CD. I would try downloading a set of state charts from NOAA
. Just go to the bottom of the page and agree and then on the next page click on the link in "Click Here to Download NOAA Raster Navigational Charts". Go to the State group and choose NV (5 Mb) and download it. When you've unzipped and drop down through the folders you will end up with two folder with numbers. In these are the chart files. Use Mapcal to set the the directory path to each of these folders with numbers then scan for new charts. It should find 9 charts.
Open Seaclear and go to File-->Charts-->List all and click on the USA chart. When this opens you can go to Nevada and double click on the blue river along the southern border and you should open a chart of the lake above one of the dams.