Is it possible to publish an old iWeb site on Wix.com?

No, you won't be able to publish an iweb site there.

You need a regular web hosting account. See this article for how to do it;

http://iwebunlimited.com/iweb-tips/life-after-mobileme-transferring-to-a-hosting -company/

Since you are using iweb 1.1.2 you won't have FTP publishing so you will need to publish to a folder and then use an FTP client to publish.

No you can't, because Wix and WordPress are totally different. Both Wix.com and WordPress.com are free and will allow you to go and create an account and then create a website and publish that site to their own servers, so "sitename.wordpress.com" or "sitename.wix.com". If you decide to use WordPress.org, then you'll need an ordinary webhost and you'll need to install WordPress on it.

Whichever way, if you want to use either Wix or WordPress, then you'll need to re-build your site there and publish it.

If you still want to use iWeb, but I have to say that the version that you are using is iWeb 06 and is very outdated now, then you'll need to sign up for a web hosting account with a web host such as GoDaddy or HostExcellence and purchase both a domain name and hosting and then upload your website there. There is no other alternative.

I would suggest that you move onto new software too. Apple has not sold or supported iWeb for at least 2 years now, so if you use iWeb, then you'll need to purchase iWeb 09 from Amazon by purchasing either the iLife 09 or iLife 11 boxed set, both of which contain the latest and final version of iWeb, iWeb 09.

Look at all the alternatives out there that are being actively developed and supported - Freeway Pro/Express 6, WebAcapella 4, Flux 4 and the most like iWeb is EverWeb (http://www.everwebapp.com).

Whichever way, you are still looking at re-building your site in a new application. If you want to use WordPress.com or Wix.com, then you can, but you'll need to re-build your site from scratch and then publish that site to their servers.

If you use new software to re-build your site, then you'll need to purchase a domain name and hosting from one of the many webhosts that are out there and publish there.

Go and take a look and re-build your site at either Wix or WordPress, but you can't upload an iWeb site there because they are NOT ordinary webhosts and to upload that iWeb site, you need an ordinary webhost.