file naming/missing mp3's in library
 

recently, i had to do a clean installation on my iMac. i swear i was about
a couple days from burning my hundreds of mp3's onto discs before my
computer decided to go AWOL for good. it sucked. anyway, since
re-installing my system and using LimeWire 2.1.3, some of my mp3's
are disappearing from my library. i see them in my shared folder so i've
figured it has to do with the length of characters in the file name including
the suffix .mp3. i think 30 is the limit for naming. the problem is that
before my computer crashed, i was able to name my mp3's in any length
and fashion i saw fit in the library and it wouldn't affect the actual name
of the mp3 file. i was used to naming my songs as detailed as i wanted
and would like to be able to do so again. how can i rename a song in the library without changing the name of the actual file like i used to? did i
not install something i should've or is LimeWire doing something new?
is it an applescript problem?

i use an iMac DV, 400 Mhz, Mac OS 9.1 with iTunes 2.0.3 as my mp3 decoder.:(