Hi SunAtNight,
We have replied to your question on your card and are going to share the same information here as it might be helpful to others.
The '/ General » General' part of 'for spouse' indicates that the card does not specifically speak to a husband or a wife in the text thus could be given from either spouse to the other.
The Occasions >> Anniversary - Wedding >> General Wedding Anniversary is for general cards (non-relationship specific,etc) that others would give TO a couple that is celebrating their wedding anniversary.
Hopefully that clarifies it a little and answers any questions on the difference between each of these categories.
As for the question on the placement of the subcategories for wife or husband that is something that we would have to check with admin.
Reviewer 758