I can probably help with that. Well, I'll be able to get you online using your 3G Modem. The question is however, which cooking ar you using? The one from the website? It's old. You need the one found @ http://mirror.slitaz.org/iso/undigest/ under the name slitaz-cooking-core.iso

Now that you gave an up to date copy of cooking, we can proceed into getting you sakis3g and online.
First off, go get the following packages off a PC that does have an internet connection:
http://mirror.slitaz.org/packages/cooking/bash-4.2.tazpkg
http://mirror.slitaz.org/packages/cooking/grep-2.7.tazpkg
http://mirror.slitaz.org/packages/cooking/linux-dialup-2.6.37.tazpkg
http://mirror.slitaz.org/packages/cooking/nscd-2.13.tazpkg
http://mirror.slitaz.org/packages/cooking/gmp-5.0.1.tazpkg
http://mirror.slitaz.org/packages/cooking/make-3.82.tazpkg
http://mirror.slitaz.org/packages/cooking/coreutils-conditions-8.10.tazpkg
http://trixarian.za.net/downloads/sakis3g-cooking.tazpkg
And copy them to a USB Memory stick or something and copy them to your home folder.

Now open a terminal (xterm - it has an icon that's a box, with >_ in it) and do the following:
1. Type su and press enter/return
2. Type your root password (default password is root)
3. Type tazpkg install bash-4.2.tazpkg and install the program.
4. Do the same for ALL the above packages you downloaded preferably in the order I have above and only installing sakis3g last.
5. Plug in your 3G Modem and go to "Red Spider Button"---> Internet ---> Sakis3G and pick Connect on the menu. If everything goes well, you should be online in about 1-2 minutes.

Thank you!!!!! with the modem i can add repositories, i think!!!

The guide it's very explained and complete, thanks!!!

but this http://mirror.slitaz.org/packages/cooking/nscd-2.13.tazpkg doesn't exist??
only tazpkg://mirror.slitaz.org/packages/cooking/nscd-2.12.2.tazpkg but it's tazpkg and not http or ftp
i tried to download with firefox and midori, but i can't... so i'll try with nscd-2.10.1.tazpkg for Slitaz 3.0...

I looked into it. Seems the package is completely missing from the cooking repository for some.

Here's a copy I have of it:
http://trixarian.za.net/downloads/nscd-2.11.2.tazpkg

Please note, that you'll need the latest cooking for this to work.

Thanks again Trixar_za!!!! now i can connect my modem....

Thank you! so my thread is solved