REGEXP Uppercases And Double Quotes

I'm trying to solve three minor problems with vbscript REGEXP.

1) I want to find any occurences of and|or|not in a string and capitalize them.

regEx.Pattern = "(s)(and|or|not)(s)"
KW = trim(regEx.Replace(KW, "$1" & ucase("$2") & "$3"))

how come this is not working?

2) when highlighting words (in a search results page for example), I want to match the word ignoring case. however, when wrapping the word in highlighting code and replacing the substring, I want to keep the original capitalization.

regEx.Pattern = "(^|s|[^a-z0-9])" & highlitetemp(iTemp) & "(s|$|[^a-z0-9])"
Body = trim(regEx.Replace(Body, "$1<span class=highlite>" & highlitetemp(iTemp) & "</span>$2"))

for example, if the word to match is marvelous, but the word is stored uppercase in the db, the above code will replace the word with a lowercase version. how do I get around this?

3) I want to remove any and|or that are not inside double quotes in a string. for example,

test = """The dog and the cat""" & " and fox or mouse " & """the cat and the dog"""

resulting in "The dog and the cat" and fox or mouse "the cat and the dog"

I would like to remove only the AND OR linking fox and mouse in the middle of the string. how would I do that?