What kind of computers do you have? It should say on the front of each; if they're laptops, it will say so underneath the screen. Also describe them a little bit, as there are different variations of most of Apple's line (gumdrop iMac vs. desklamp iMac, for example).
To get a song to play in iTunes, it has to end in something besides .wma; the usual suspects are .mp3, .m4a, and .m4p. If it does end in .wma, then you have a Windows Media file, which iTunes can not read. If it's not a .wma, simply drag the file on top of the iTunes icon, which is in your Dock by default.
There is iTunes for 9.2, iTunes 1 and 2 were for 9.2... you can download iTunes 2 from www.macupdate.com if you would like to.
And your welcome.
• 2.5 GHz MacBook Pro Core 2 Duo, 4 GB RAM, 320 GB hard drive, runs 10.6.8
• 1.6 GHz iMac G5, 1.5 GB RAM, 120 GB hard drive, runs 10.4.11 (out of commission)
• iPhone 4, 16 GB, iOS 4.3.5