Use of previous court transcripts in assault case

My question is regarding my use of transcripts in a court hearing for a man that assaulted me. I was brought to trial as well and all of my charges were dismissed.There was only one witness to the assault, but it was a friend of the assailant.In my preliminary hearing, the assailant's friend admitted to several key events that took place leading up to the assault.My question is this.Assuming I can obtain the transcripts of that witness's testimony, willl I be able to(will I even be offered the chance to?) use them in the assailant's court hearing?I am required to be there to testify against him, as the man is pleading not guilty to the charges brought against him.

to elaborate a bit more, the police had attempted to charge me with simple assault and disorderly conduct, since the assailant, after being arrested from fleeing the gas station where this occured at, lied to police to convince them this was mutual.The assailant and I have known each other for a few years.

All of that testimony if it was taken under
oath normally can be used.

You might want to consider having legal counsel assist you with this if you face any possible charges yourself.