can i remove boost menus from a i875?

hello , i just bought a boost motorola i875 that has been unlocked because i am a nextel subscriber. Now for some reason i cant send txt messages or download software off the web. I was also wondering if theres a way that i can change the phones software to nextel software and not boost? I noticed that the nextel phone model is i870 but its totally the same as the i875 besides the boost menu options. Id like to get rid of all the boost menus and everything involved with boost back to regular nextel menus if it possible. Can anyone gimmie some ideas on how i might go about converting this to a nextel or if i even can convert it?????

it is possible, but not worth your time.....

If you have a local shop you might be able to get them to flash you i875 with nextel software so it will be just like a i870 not one bit difference except appearance.

There is a man that sells the i875 that is totaly flashed for nextel. I know it can be done. I need that software too. I have e-mailed the person on ebay but he will not let me know his secret.