Another old iMac requires upgrade/update

Dear all.
After a year of waiting BT have finally got me on broadband in very rural West Wales!
I own three Macs none of them new. A G4 dedicated to sound recording, An Emac for general web use and graphics. And an 'old' iMac; a charcoal grey' Limited edition with 13 gig HD!! It uses OS 9 .0.3
I need advise Re the iMac. I have two Kids and would like to bring it back into service as a slow web browser etc.
The CD reader no longer works; I may replace it if everything else can be made to work.
I have managed to get iMac on line via BT HomeHub using original 'Explorer'. I can just about get to google search page but most web pages come up as gobbledygook - unreadable characters. (is this a resolvable conflict?)
Therefore I have so far been unable to download any updates.
I guess I need to install OS X? or OS 10.3 ?? But given that I can't download as is, and cant reinstall using original disk, is there another way?
Can I link iMac to eMac via ethernet and get OS X? that way? What else could I/might I have to do to make iMac worth bothering with. I am on very low budget at present so any big expense is out of the question.
I would greatly appreciate any helpful advise. Please use simple, one step at a time, terms since I am semi-technophobe.
Many Thanks Chris 'Bubbapix'

As it happens, I've been dealing with very much the same sort of thing with a Bondi Blue. I can post some links for you if you want to pursue the firmware update and installation of Panther.
I was able to install Panther on the Bondi, and it will run Safari and connect to the internet. However, it has quit twice while trying to connect to You Tube, so I suspect that version of Safari has limits.
Configuring Apple Mail has been a challenge, especially with GMail. It's something I'm still trying to get worked out, but I don't know if it will be possible, as I believe that Google will stop supporting this version of Safari soon. AOL seems to work OK so far.
The Bondi is very slow, almost like dial up. Not sure if your kids would really like it. Yours might be faster, especially if you maxed out the RAM, but I suspect it would still be painfully slow.
If there is any way to sell the iMac for enough to buy something a little more modern, maybe with at least a G4 processor and running at least Tiger, that might be the better course of action if you can swing it.
Shop around for Panther and Tiger and other Macs, and see what you can come up with. Not sure what you could get for the iMac, but if you can get some OS X discs for it, it can be made to be somewhat useable.
When updating the OS on the Bondi before I got it on line, I downloaded the update onto my iBook G4 and then copied it onto a flash drive. I then plugged the flash drive into the Bondi and copied the update onto the desktop and installed it. You might try this to get the OS 9 update if you haven't been able to do it any other way.
Good luck!

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