First of all, setting properties on the YASA project
svk:project:path-tags => tags/
svk:project:path-trunk => trunk/yasa/
svk:project:path-branches => branches/
svk:project:path-trunk => trunk/yasa/
svk:project:path-branches => branches/
Then, svk mi /yasa/mirror/yasa http://localhost/repos/yasa
% svk sync /yasa/mirror/yasa
% perl -Isvk/trunk/lib /usr/local/bin/svk br -l /yasa/mirror/yasa
yasa-freq
% perl -Isvk/trunk/lib /usr/local/bin/svk br -l /yasa/mirror/yasa
yasa-freq
Works 