Data from Apple2->IBM?

[jefflv@delphi.com (Jeff Vannest)]

    I'm trying to send some text files from an AppleIIe to an IBM.
    If anyone could give me some suggestions, I'd really appreciate it!
Here's what I have:
    AppleIIe:    using Appleworks(?)
                 one printer port
                 one disk drive port
                 one 'other'(?) port (9 pin)
    IBM:         286@25mhz
                 2400bps modem
                 Qmodem (term. soft.) with ASCII data capture
                 small program to strip high ASCII characters

Here's what I need:
    -What port do I use on the Apple for seriel interface?
    -What command (with syntax) do I use on the Apple? (I don't know Apple
        syntax at all -- It's for my dad!) 
    -Can I modify a seriel cable and switch pin 3 and 4 like I would for an
        IBM null modem cable?

If anyone can help at all, I would be ETERNALLY grateful!!

Thanks for your time,

Jeff Vannest
jefflv@delphi.com