If you get the Five Finger Flow's you oughta be able to use them in the winter unless you live in like alaska or somewhere else far north. It's meant to be used in low temps (website says ~25-40 degrees Farenheit) and if you're going out at temps colder than that you can use the Injinji wool toe socks for extra warmth.
It's based on the amount of trips. According to RsWiki you pay him/her every 8 trips and that includes serving food, and taking stuff to the bank/sawmill And Id get 88 herb
To be honest ever since everything rose in prices RC'ing isnt the crazy moneymaker it used to be a couple years ago. Double nats can easily be matched by even barrows and is easily beaten by bigger bosses like Dks, TDS, and Gwd. But if you're really set on getting 91 rc best overall imho is to do ZMI to 91 which would profit you maybe 2m and then do double nats the rest of the way. That way while you're not making alot of money at the start it can be offset by the increased time you're spending at 91 rc and making faster money/
Oh, well then my advice would be to scramble up the two lowest rows of the puzzle. First solve the left most 2x2 square so that you're left with 2x3 left two solve and that one open space you should be left with the 5 that are supposed to fit in the box. This guide helped me alot when I was first learning to solve them http://forum.tip.it/topic/71248-sliding-puzzle-box-tips-and-techniques-w-vid-aow/ His technique dealing with getting the top right ( or top left in your case) in the right place is basically the same as your problem just flipped on its side. So just imagine it on its side.
You could go avians in void if you get your summon up to a decent level (68 for bunyip) and your def up a little more. You could train slayer which brings in a lot of charms while getting your def up and usually profiting. It'd be hard for you to join teams with low pray/def/sum unless you get a drop while ls'ing a mass. This guy has a decent void guide and setup. http://forum.tip.it/topic/230351-slaytaniccs-complete-aviansie-maging-ranging-guide-complete/
If I remember correctly, the RS Client from the Downloads section on the homepage is for people who are having problems with their java. Try downloading and playing with that.
I own a pair in black and I love them, they last pretty long too, Ive put over 1000 miles into them and they havent broken yet. Though once they do break I plan on switching to a pair of Vibram Five Fingers. I havent had an injury since I started even though I considerably upped my mileage. Minimalist running FTW