Let me solve your problem: with a little help from Windows XP :P
Get to someone (friends or your old comp) and install isrobot and silkroad (replace with softmod files) on a windows xp machine. Copy both folder and paste in windows vista (use flash, dvd etc). Go to compatibility manager in vista and set these files to run in compatibility mode of Xp (Sp2) : srobot, Sro_Client, Silkroad.exe
Now go to isrobot and click srobot, it probably wont show up in the tray, dont worry; go to silkroad.exe and click and start the game. When you are in game you will see the bot is running.. and do all as usual..
have a good vista-sm-botting
..hope this works for you and others who are having probs with vista and bot