Hi kagomi,
itīs always a problem from your emulatoins program you use to connect to a UNIX System. Every emulation have itīs own procedure to receive files with z-modem. Normaly you use parameter "sz d /bla" to copy files into the named directory. Sometimes it is better you use the funktions from your emulations program to copy files. Example : If you use TUN-EMUL from ESKER then you better use RTUNPLUS to copy files from UNIX to WINDOWS or DOS.
Which emulations program you use ?