The character 着 has many readings, but I'm interested on 2 of them that have grammar usage: zhe and zháo.
As zhe, 着 is used to express a continuous state, as in 门开着 (the door is opened) and 他跑着步听音乐 (he listens to music while running).
As zháo, 着 is used as a resultative complement that indicated the success of an action (similar to that expressed by 到).
So here comes my first question:
1 - Does 着 have exactly the same meaning as 到 as a result complement?
找到/找着 - 买到/买着 - 看到/看着 - 想到/想着 - 睡到/睡着 are all the same?
That being said, here comes the second question:
2 - How would I be completely sure if 着 would be read zhe or zháo? For example:
她会想着妈妈。Ta hui xiang zhe/zhao mama (She will be thinking/come to think about her mother.)