You can do:
1.- Go to www . ya h o o . com and find the correct Symbol
2.- Go to amibroker - Symbol - New and add the all symbols like Yahoo show them
3.- Go to Tools - AutoUpdate - Select Source : Yahoo Histrorial and select 3 or 4 years ago and enter wait until all Symbols are updated and close amiquote.
4.- Go Tools - AutoUpdate - Select Source: Yahoo Current and enter, minimze it and will import direct yahoo data ea 20 mins ( delay ) and you can see all data current with 20 mins delayed,
All is Free