I think you can just download the TazPkg. The packages are available from the SliTaz website.

Once you've downloaded this file you can use the following steps to manually unpack its files.

Steps

1. Download

   $ wget http://mirror.slitaz.org/packages/cooking/tazpkg-5.1.tazpkg
   

2. uncompress file

   $ mv tazpkg-5.1.tazpkg tazpkg-5.1.tazpkg.gz
   $ gunzip tazpkg-5.1.tazpkg.gz
   

3. cpio extract archive

   $ cpio -id < tazpkg-5.1.tazpkg
   

4. contents of extracted archive

   $ ls -l
   total 152
   -rw-r--r-- 1 saml saml  1213 Oct 24 22:57 files.list
   -rw-r--r-- 1 saml saml 66044 Oct 24 22:57 fs.cpio.lzma
   -rw-r--r-- 1 saml saml  1958 Oct 24 22:57 md5sum
   -rw-r--r-- 1 saml saml  1648 Oct 24 22:57 receipt
   

5. uncopressed .lzma file

   $ lzcat fs.cpio.lzma | cpio -idm
   596 blocks
   

6. resulting extracted files

   $ find fs/ -ls | head -5
   10895752    4 drwxr-xr-x   4 saml     saml         4096 Oct 24 22:59 fs/
   10895756    4 drwxr-xr-x   4 saml     saml         4096 Oct 24 22:59 fs/usr
   10895757    4 drwxr-xr-x   8 saml     saml         4096 Oct 24 22:59 fs/usr/share
   10895758    4 drwxr-xr-x   3 saml     saml         4096 Oct 24 22:59 fs/usr/share/icons
   10895759    4 drwxr-xr-x   3 saml     saml         4096 Oct 24 22:59 fs/usr/share/icons/hicolor
   ....
   

The files in the fs/ directory can then be moved into position to regain the tool tazpkg.

$ find fs/|grep "/bin/tazpkg$"
fs/usr/bin/tazpkg

References

• How do I use cpio command under Linux?
• tazpkg fs.cpio.gz not found... fs.cpio.lzma?