Hi,
here are a few links to SpeedOptimizer vers. 1.5.
ftp://ftp.sunet.se/pub/pc/mirror/sim...conn/spo15.exe
ftp://ftp.saix.net/pub/simtelnet/win...conn/spo15.exe
ftp://ftp.freenet.de/pub/.disk0/ftp....conn/spo15.exe
ftp://ftp.cc.ntut.edu.tw/Windows/Sim...conn/spo15.exe
ftp://ftp.sogang.ac.kr/.6/simtelnet/...conn/spo15.exe