Occasionally your web browser (especially IE) will decide it knows better than you what you want to downlaod and will do things like
1) Rename the fiel and add .tar to it. This often looks fine on the desktop and the documents tab on the Z, but the installer won\'t install it. Rename the file to remove the .tar and it should work.
2) gunzip the file - leaving it only a tarball - and NOT rename it, you can check that its a correct ipk tarball by tar tf <package>.ipk, if it is then gzip it and rename it to .ipk and all should be well
Occasionally the author of the package will tar the ipk so that browsers deal with it by asking if you want to download instead of opening the ipk in the window - garbled text. You can untar or tar tf the package to see whats inside.
Also I\'ve occasionally gotten bad ipks that supposedly downloaded fine but would not install - try downloading again (from a mirror site if possible) and see if you have any better luck.
Another option is to install a version of ipkg that deals with both the newer ar format as well as the tar.gz format. Haven\'t tried it myself but it should work fine.
Stu
