Need a SEO add on, tried all but nothing

[Marco Serge]

Hi there,

I'm using Zen Cart 1.51 I was using Simple SEO URL and was good for me, but for better speed time of my site I had the need to move it on another server, this server utilize PHP 5.3 and no more PHP 5.2 and as consequence My Simple SEO mod (as stated by authors) stopped to work (because it's not compatible with PHP 5.3).

So now I need another SEO mod:

Tried Ultimate SEO URL, doesn't work on my site (I've tried it on other shops in the past, never been able to make it work) lot of hours of hard ork used with the hope to make it work, but with no result
CEON URI Mapping: as stated in the read me document of the mod, It works only for the pages created AFTER installing the module, but since my pages are all created before the installation, I would have a problem:

"If the site has existing Categories/Products/Manufacturers/EZ-Pages, they'll continue to use the standard Zen Cart dynamic URIs, until a URI has been entered or auto-generated for them, by editing the respective Category/Product/Manufacturer/EZ-Page in the admin."

(I have almost 1.000 sub categories and I've no SEO knowledge, so if it would be up to me to manually enter the SEO url, I won't be able to put down good ones)

So, what can I do now? Actually I'm without SEO Url on my site and I'll be penalized by google if I don't to nothing.
Thanks in advance

Site url: www.jollyrogerbay.it