When I do the required packages installation I get this error
Package libdb4.8++-dev is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
When I do the make I then get this error
src/net.cpp:18:32: fatal error: miniupnpc/miniwget.h: No such file or directory
I'm running Ubuntu Narwhal. Any ideas, please?
Well duh, "fatal error: miniupnpc/miniwget.h: No such file or directory" was pretty self-explanatory, you apparently did not read after the first paragraph.