Here is mine, ugly but should do the trick
(not tested)
Code:
awk 'BEGIN{i=0}
{ content[NR]=$0; if (($0=="")) {b[i]=NR;i++} j++;}
END
{
for (x=0;x<=b[0];x++)
{print content[x] > "file1" } for (x=b[1];x<=j; x++) { print content[x] > "file2"}
}' /var/tmp/file
