There are basically two ways of accessing the LDAP Account Manager (LAM) SVN repository.
The first one is through the SVN homepage. You can view all LAM files by simply browsing the archive with your browser.
The second way is through anonymous SVN access with a SVN client of your choice. The commands are:
svn co svn://svn.code.sf.net/p/lam/code/trunk/lam lam
More information concerning LAM and SVN can be found at https://sourceforge.net/p/lam/code.