Instead of reviewing SMSY, you should switch over to the LMDB as it is the future for system data in SolMan.
The reason its telling you ERP 6.0 SPS25 is because it is not taking into account your Ehp, SAP still has to support customers who haven't taken the Ehp (perhaps unicode issues, 32 bit to 64 bit, etc) so this is a way to compare. I found a bar graph that explained this in a very simple picture, however I can't find it online and leads me to believe I read/saw it in a book. Also think of this my company is currently updating ECC from Ehp 5 SPS 4 to Ehp7 SPS 4, the SPS are the same due to the Ehp change and resetting the SPS counter back to 0, but in mopz I believe it shows SPS 28 or 29 for ECC 6.0; so essentially there is nothing you can or need to fix for the system data. If this is still confusing I will try to track down the bar graph example I saw.
As for logical components you can create your own (and is advised to do so as SAP could remove entries on you during a SolMan upgrade) so you could list it as z_ERP or zEhpERP or z_ECC; however it makes sens to you and your co-workers/customer, when you manage the system and the button that allows you to configure the system, the first section in the new window stays red until you assign a logical component to the system. So you might already have something assigned to the system(s).
SAP doesn't list it as BO, and I'm not sure if you can run a successful mopz on BO systems; if you leverage the PAM at SAP you can track down dependencies. I also believe Process Orchestration is only 7.3/7.31/7.4 which is compatible with Ehp 7.
SAP PAM: http://service.sap.com/pam
As for BO, do you have the following under the SWDC?
Installations and Upgrades - B"SBOP BI platform (former SBOP Enterprise)"SBOP BI PLATFORM (ENTERPRISE)"SBOP BI PLATFORM 4.1