What version of Toad will work with this Oracle 8i?
With the exception of Oracle client 8.0.6, TOAD 8.X to 9.X will work with all Oracle 8i clients.
The minimum requirements for TOAD 9.0.1 is as follows.
SQL*Net (32 bit) or Net8 for Oracle 8
Oracle 7.34 or higher
75 MB disk space required to run Toad
512 MB RAM required, i GB recommended
CD-ROM drive or Internet connection (needed for install only)
VGA monitor, 1024x768 resolution, small fonts
Mouse pointing device