I discovered that if you are running Thingamablog 1.1b on Ubuntu, and it won't launch Konqueror or Firefox when you click on a link in the RSS pane, that could be due to your Java environment. Launch Thingamablog from a shell:

$ java -jar thingamablog.jar

If it says something like this when you click on a link:

Exception in thread libjdic.so: Can't load IA 32-bit .so on a IA 32-bit platform.

Then you should find out if you're using the free Java clone:

$ ls -la `which java`

If that shows a symbolic link to somewhere like /etc/alternates, then this is indeed the case. When I removed the free (as in speech) Java clone and replaced it with Sun's (free as in beer) Java, clicking on links produced the desired result. The linked pages open in Firefox, rather than Konqueror, but I can live with that.