How long has Jack had his own business? What does Ahmed fetch before talking to Jack in detail?

Ahmed: Hello, Jack. Do you have a few minutes? I’d like to ask you about something important.
Jack: Hello, Ahmed. Sure. How are your plans to start your own business coming along?
Ahmed: Well, actually, that’s what I want to ask you about. You started your own business a few years ago, right?
Jack: Yes, it’s been four years now. Come and sit in the garden. Can              Q1
    I get you something to drink?
Ahmed: No, thanks. I’ll just get a pen and paper, if you don’t mind.               Q2
Jack: OK. So, what can I help you with?
Ahmed: Well, first of all, I need a reference for my bank manager. Since I’ve only just moved into this country ...
Jack: I’d be happy to write one for you. Did you get an account at
    the National Savings Bank, as I suggested?                             Q3
Ahmed: I did. They were very helpful.
Jack: I know the manager there quite well.
Ahmed: Oh, I really don’t want any special favours.
Jack: It’s really no trouble. The main thing is that the manager
    knows me and trusts me. That means he’ll take the reference
    seriously. How much money do you intend to borrow?
Ahmed: I did some calculations and figured I’d need about $40,000.
     You said that I should add some oxtra to that to cover unforeseen
     expenses, so I have decided to ask for $50,000.                       Q4
Jack: It’s also useful if business is a little slow at first. You can draw on the reserve.
Ahmed: You recommended two books to me the last time we spoke,
     but I didn’t write the titles down. Could you ...?                               Q5
Jack: Sure. The first one is called "Starting Out", by ... er ... Ben
    Jones, I think. Yes, that’s his name. That book has plenty of
    useful advice on getting started, including all the steps you
    need to take, like tax, insurance, accounts—all that kinda                 Q6
    thing. It costs about $20. The second book is the "Small Business                  Q7
    Code". That’s published annually by the government. It’s
    quite expensive—about $40, but it’s worth it. It contains information
    on relevant laws and the tax code. It also gives you the
    addresses of all the relevant government offices and samples
    of the various forms you’ll have to fill out, along with explanatory          Q8
    notes.
Ahmed: Yes, that book is essential, I imagine. Can I buy those books at any bookshop?
Jack: The first one, yes. The second one, I’m not sure. There’s a
    government bookshop in the city centre that has all the government
    publications. It’s at 49 London Road.                                 Q9
Ahmed: You also mentioned some computer software ...
Jack: Was that the tax software?
Ahmed: Yes, that’s right. It automatically calculates everything, you said.
Jack: You can get that from the government bookshop too. It’s not cheap, but it’s cheaper than an accountant! You type in the total numbers in each of the fields ...
Ahmed: Fields?
Jack: Spaces.
Ahmed: Ah!
Jack: And then the software automatically calculates how much tax      Q10
    you have to pay. Even better, you can send the form electronically
    to the tax office and, well, it just makes everything so
    much more convenient.
Ahmed: Jack, thank you so much. I won’t take up any more of your time.
Jack: No problem! I know how difficult it is, setting up your own business. If I can help you with anything, just let me know. I’ll have that reference for you tomorrow.