Just a few questions for violin? (Violin value, cello rosin, fiddle, etc.)?

Hi, so to begin with i have a huge passion for music and have been
playing various instruments for about 5-6 years now, and i decided to
further expand my interest into stringed instruments. My grandparents
for my birthday a few years back gave me a violin that has been in my
family for a while now. I read on the inside of the violin, and it
sais this:

"Antonius Stradiuarius Cremonenfis Faciebat Anno 17'' (at the bottom
right of the label, it sais within a circle "A + S") also on the back
of the violin, it has a red sticker with white numbers saying "131."
what would this be?

I looked this up on google, and i came up with a website describing
what it is:

http://www.fritz-reuter.com/DOC/articles/artiexp1.htm

and i saw on a google image of another one that was being sold for
around $175 so im assuming it isn't that big of a deal. So if anyone
knows anything else about this violin, can you give me some more info
on it? that would be great.

Ok now onto my violin questions. First off, My gparents got new
strings for it, new bow, new case, pretty much new everything, but the
thing is that summer, they signed me up for violin lessons where you
learn to play in the "fiddle" style. Although thats fine, i honestly
don't want to play fiddle. i want to learn how to play in the
traditional classic violin style.
For rosin, they had gotten me cello rosin. I didn't know until later
on though that cello rosin is more sticky than violin rosin. Its
called "Shermans cello rosin," which i looked up on online stores such
as amazon and it didn't get that good of a review.

http://www.amazon.com/Sherman-147DO-Cello-Rosin/dp/B000EELF7O

Because of that, im thinking of changing to a different rosin more
suited to the type of playing im interested in. Does anyone have any
recommendations as to what rosin i should get for classical violin
playing? maybe preferably one in the cake form? thank you.

As for my violin bow, i couldn't find a brand or anything so i don't
know much about it. I think its a good bow, but my question is this:
Do they make different bows for people who want to play fiddle and for
people who prefer to play classical? what bows do you reccomend?

Also, since i had been using cello rosin, and right now since im
assuming that its probly not the best for my violin/ bow, im planning
on either taking it to a place to get the cello rosin cleaned off or
doing it myself. I heard that you can wash it yourself by carefully
undoing the frog and washing the bow strings in alcohol or soap and
water. what do you reccomend i do? And also in regaurds to cleaning,
is there possibly a place i could take my violin to get it shined or
something so that it looks more clean? kind of. it looks pretty old
and possibly a little beatin up. I personally think it still sounds
good. When my fiddle teacher played on it (while he still was my
teacher,) it sounded pretty good.

Finally, last question thats really quick. On my violin where the
strings get strung/ bowed on, is it normal for that area to be a
little rough? idk if thats just caked on rosin or whatever. I
previously tried whipping it off when i found out you ARE supposed to
clean off the rosin when done playing, and its still a little rough.
If it isn't, what should i do?

Sorry for so many random questions lol, thanks for everything though.
if you could answer just one, or even all of them, that would be
great. thank you!