You can download the compiled library with a compiled html helpfile from the OpenOffice.org  project page. To the download page and the source code can be checked out from the OpenOffice.org's CVS. Info about anonymous CVS checkout | Browse CVS online

Info: The current version is 1.3.0 

If you're looking more info about AODL e.g. features, ... take a look at the AODL Wiki page on OpenOffice.org's Wiki. To the AODL Wiki page 

Remarks: Since AODL is an OpenOffice.org project now. The cvs and download version of AODL on sourceforge wouldn't be updated any longer. When ever you want to get the current version of AODL use the links above.