Thank you for your interest in CK-ERP.

After ck-wh (warehouse) was introduced, ck-inv -> Goods Receipt and
ck-inv -> Goods Delivery had been relocated into ck-wh, so there is only
the single problem of the missing ck-wh module.

Since each CK-ERP is housed within separate folder, so you could
actually re-explode your CK-ERP tarball, and extract the ck-wh folder
and copy it to where all the other ck-xxx modules are currently
located.  However, there is a possibility that the original CK-ERP
tarball you downloaded might have been corrupt, it may be a good idea to
re-download the CK-ERP tarball from sourceforge.net.  Check the file
size of the downloaded tarball and re-do the CK-ERP installation.

Cheers,
CK