Most of these abbreviations are unique to BibleWorks, so they won't turn up on an Internet search. You can use BibleWorks Help to find the meaning of the abbreviations. Press F1, then in the Contents tab, scroll all the way down to section 70, Database Sources and Copyrights. Click in the right-hand panel, where the information is, and then press Ctrl+F to bring up the Find dialog. Check the Match whole word only box, then search for the abbreviation, such as SCR or BGT.
To see what Greek versions are installed, find the drop-down box in the Browse Window that shows the current search version (KJV or NAU or ESV or whatever). Click on the downward arrow next to that box and slide the cursor down to Greek. All the installed Greek versions should then show up in a list, and you can see if you have all of these present.
Possibly what's actually missing is the manuscript files themselves, though. Do that same procedure with the downward arrow next to the current version, and stop at Manuscripts to see what, if anything, you've got installed there.