I'm trying to install version 0.9.3. When I tried the "Upload Package File" option, the page kept timing out because the file was too large. I ended up uploading it to a temporary file and trying to install from the url, but I get this error message:

"* Unknown Archive Type

Warning: file_put_contents(C:/xampp/htdocs/dotrey/hoh/tmp/) [function.file-put-contents]: failed to open stream: Is a directory in /hermes/bosweb/web100/b1008/sl.hospitalsofhope/public_html/libraries/joomla/filesystem/file.php on line 298

Unable to find install package"

How do I fix this problem?