I have to disagree, with all due respect, with my colleagues on this one. Forget about "getting an attorney." This is a pay to play system, and if you cant afford to pay, well then I would not try and play. How about just getting the community service done??? I may sound crazy, but it doesn't sound like you have been violated yet. Go see your PO and tell them that you are having a hard time, but that you really do want to complete your probation. They may just cut you a little slack. Just...
Not likely. You usually only get credit for time served on a case if it was done after your arraignment for that offense. Sometimes it is within the judge's discretion to give any other jail credit, but I have never seen credit for time served for a prior case unless it was served concurrently with the sentencing offense.
This certainly will not show up on your record as a conviction; However, there still may be an arrest record. I would contact your attorney and discuss with them the possiblity of having the fingerprint card/record destroyed. You will be one step closer to keeping this matter less public.
Even if your probation was completed successfully, a prior CCW conviction would form the basis for a habitual offender enhancement for a subsequent felony. I think, but am not sure, this is what you are asking.
The best way to answer your question (whether a 20-year old charges was or was not used as to MCL 777.50) is to calculate the proper PRV scoring based an accurate list of convictions and then compare your score to that of the probation officer's score. That will tell you whether or not something was improperly scored.