mitecw,
The 6.3 SP4 is 6.3.8.105.
The 6.3 SP7 is 6.3.11.136
The version 6.3.11.109 is the version of DB programming associated with 6.3 SP7.
So you need to get 6.3 SP4 from your vendor, as that is the only way to get the software, and install that first and then install 6.3 SP7 which you have.
After that install the version of your system that you need to use for DB programming.
Thanks,
TE