Please first read the installation guide from SPI documentation, chapter:

Thin Client Operation Using Citrix MetaFrame XP.

(I was personally involved in this document creation).

It is important to copy the Intools.ini and the logo file to the personal user profile folder and rename the original intools.ini in SPI home directory.

The user profile folder on the network should have a unique path for all the users.

I f  you get trouble with the domain explorer  I recommend you search in the documents and setting\<user_name>\ 

 for the explorer.ini file and copy it to the user profile directory as well.

The temporary folder should point to the user profile directory.