When did you start using Modplug (or equivalents)? Do you have e.g. .MOD, .IT files too from your earlier work?
In a really tight nutshell:
Well, to be honest i've started serious composing about two years ago, when i found VST technology and soft synths. The possibilities opened a whole new level of freedom, than i had experienced with the "old" sample based system. Before that, i was an Impulse Tracker (dos/win98 era), later on Schism Tracker user (with win xp) for several years, but all i did was "playing" and experimenting with the software and some sounds. I couldn't call that composing because i had zero experience with one of the most important element for finished songs: structure arrangement. While i had several interesting ideas, most of my pieces was about 1-2 minutes long, i couldn't go with them anywhere.
So, after some time, i've decided to learn all the essential technical stuff that an electronic musician should know, and wanted to compose finished pieces, with my own synthesized sounds. Within a few months i managed to learn what i needed to know, learned a lot about synthesizers, found a tracker that has a very appealing, easy, familiar interface, and have vst support (OpenMPT). Everything went fine, i've managed to finish my first vsti based piece "Royal", and i was very pleased with it. This was kind off a turning point, with this, stuffs finally started to work as a whole, and i was starting to use my past experience and gainer rapidly more and more. For only a few months with OMPT, i needed to pass to Renoise, the only tracker at the moment with enough modern feature list that i personally demanded for comfortable composing, without handicaps or workarounds (multicore support, automatic vsti suspending, easy automation, built in LFO-s, great vst routing/effect system, but i could go on with the list...). From that time i almost always used Renoise for composing, and did finished several pieces from various genres. I think i will stay with it for some longer time. Now i have only hardware barriers sometimes, but haven't really experienced any serious software limits that could interfere with the creative process.
The Modplug community was/is a huge help, i will never forget that fact. They aided me with technical help, reviews and comments that were very important for my development. They could show me their experience, expectations while listening, and supported me with advices. So for return, i am helping them or the newcomers with any technical or other advices, commenting their work if i have any particular to say, and posting my songs for them to listen and enjoy.
oh my :shock:, this was a bit longer reply than i've expected

, but you needed all this to understand if i say:
Yes, i have old .IT files, but they wont help you much, and they suck.
Also if you would see the pattern list from the new .xrns files, you wont get much, because the key stuffs are on the synthesizers and on the vst routing, automation, or lfo part. The notes are plain and standing as they are, you will never find any trick or technology there.
But, if you have any particular question about "how was something done", "how can you archive that", feel free to ask, i will gladly help.