This is the software you need to compile/build LAMS:
Getting LAMS source
You can get the LAMS source via our CVS or on our Downloads page (source tab)
That should compile LAMS and all its tools.
After it finishes compiling, go to you jboss-5.1/bin folder and execute run.bat or run.sh to start LAMS. Then point your browser to http://localhost:8080/lams/ and you should be able to see the LAMS login page.
There's a few testing users to get you started:
Still having problems to build?... Post your issues in this forum thread in the LAMS Community