Seems like several packages missed in sl-source repo:

pirut-1.3.28-20.sl5.src.rpm 
sl-release-notes-5.9-0.src.rpm
sl-release-5.9-0.sl.rolling.src.rpm
tcl-8.4.13-6.el5.i386.src.rpm
mysql-5.0.95-3.el5.src.rpm
wireshark-1.0.15-5.el5.src.rpm
freeradius2-2.1.12-5.el5.src.rpm
libvirt-0.8.2-29.el5.src.rpm
httpd-2.2.3-74.el5.src.rpm
gtk2-2.10.4-29.el5.src.rpm
autofs-5.0.1-0.rc2.177.el5.src.rpm

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Best regards,
Elena