For some PC CD games there are quite a few different editions for different OSes...for instance I have a game here that works on DOS only, my other version of the game only works in Windws 95. Same goes for games designed for Windows 3.1 Should I put that info in comment or Edition?

In comments. If there are two versions of the game for different systems, OS should be also put in version field.

Is there a way to edit my own dumps I put in the database?

No, you will have to post a thread in the fixes and additions part and a mod will change your dumps for you.

Three years and still going strong.