Some selected solutions
To see problem, put http://www.spoj.com/problems/FILENAME/ Make sure it's all caps, and don't include the .java extension
Some files may actually have nothing of interest (i.e. it's just a template file). This just means I forgot to implement the problem...
http://www.spoj.com/users/lg52931/ to see what problems are actually solved. Some may not be included (that probably means I implemented in C++, or I can't locate the file).