Am currently trying to learn simplified version and am not sure whether I could use resources from this site and the anniversary dictionary to supplement the current guide I am using (Gregg shorthand simplified, 2nd edition). Just because there does not seem to be nearly as many resources for simplified as there is for anniversary. So how much of a difference is there really between the two?
Also, is this the right place to just ask what random words that i come across mean?
The alphabet is the same in all versions of Gregg shorthand, but the short forms and methods of abbreviation differ substantially between Anniversary and Simplified. A person who learns only Simplified will find Anniversary very hard to read, while someone who learns only Anni will find Simplified easy to read but rather strange. If your interest is in Simplified, you should use Simplified resources to learn it; if you're particularly interested in Anni resources, you should learn Anni. Once you become fluent and comfortable with one version, you can learn to read others, and you can even modify your own writing to include abbreviating techniques from other versions.
If you want to learn Simplified, learn that. It will be easier to learn one version and even quicker. Then learn another if you want to. You would have to start over with a manual, simply because you need to learn the new rules.
"Gregg Shorthand had achieved the most extraordinary success ever attained by any system in the history of shorthand." John Robert Gregg, 1922