We have just moved to Landesk 9 (we did use 8.7 before). We try to reproduce what really worked fine in an 8.7 deployment. We used the INF File to install the Landesk Client then start a Policy Update with AMCLIENT.EXE /APM to force software distribution. Here an example of what we did in 8.7:
After a few unsuccessfull tries, we decided to separate the Landesk client installation and the software distribution. The PC is started twice after the Windows installation with the AutoLogonCount set to 2 in the INF file.
The first Autologon is used to install the Landesk Client and to set registry keys in the "RunOnce" key that start the policy.sync.exe during the second Autologon.