I wrote 'určitě nechci tady bydlet'. What was wrong with this construction?
Tady sounds much better in the second position. It might be marginally possible as you proposed, when stressing bydlet, but it sounds unnatural.
"Tady bydlet určitě nechci!" was not accepted. The word order?
Word order again. In the above sentence, it seems TADY could also be in the stressed last position. But obviously not.