Looking for developer(s) to update an old coin, possibly to do smart contracts and other things. Where do I go about doing that, any ideas on cost, etc?

Anyone else have problems where one changes base58Prefix and you use the same value as a wallet used several years ago and you get errors?  Almost as if its not using the same equation/algorithm?  I mine to the address created in the new wallet, but when I check an explorer, the address that was mined to was different from the one reflected in the wallet, as if the base58 conversion is wrong (in spite of using the same value as in previous wallet versions).  I also have problems where I can't dumpprivkey and simply get an error stating I don't have the privkey for that address.  Even in some troubleshooting I can get the privkey, but its not in the same format as the older wallet's dumpprivkey format in spite of being the same base58 value.

Example:
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,48);

I know the last part, the "48" in this case, references an "L" as being the first character of an address.

What does the 1 reference?  What are some examples of changing it and what will changing it do?

Branching off litecoin 16.3 I compiled a wallet that seems to work fine until I tell it to make a "new" address.  It appears to creates one.  Then I go to the console and type "dumpprivkey <address>" and it responds with "Private key for address <address> is not known".  It also doesn't track any of the transactions for the addresses its claims to create.  If I have the wallet open an existing wallet.dat file, it works fine with existing addresses.  If, even with an existing wallet.dat file I tell it to generate a new address, it doesn't know the private key for that address via "dumpprivkey".  However, "dumpprivkey" does work for the existing addresses in the wallet.dat file.  I don't recall changing any code relevant to this behaviour.  Anyone have any ideas or what I could look at to try and resolve this?

I forked the litecoin wallet version 16.3 for an altcoin.  When I mined directly to the wallet, I mined a number of blocks, but none showed up in the wallet transactions.  They did show up on the explorer.  I was also able to confirm the transactions within the console of the wallet, but didn't show up.  I then transferred some coins from another wallet to this one's address; still didn't show up in the wallet.  It has been over 12 hours and far beyond any "maturity" code for either the coinbase or regular transactions to appear.  I'm not aware of tweaking any code that could impact that.  What parts of the code could produce and or affect this result?  The transactions don't even appear as pending.  They simply don't display and attempting to send the coins results in the claim that there are no coins in my wallet.

I'm not a very good programmer but I wanted to make some minor changes to vanitygen and recompile it but I...well, when it comes to C++ I've never been able to compile anything that had more than a single .cpp file (okay, maybe ones with the .h includes, but that's it).  even then, its been a few years since I even tried it and even then i recall it still was a total pita.  Odd to understand programming to a degree that I can actually mod the code etc and not compile, but that's where I'm at.  I'm using windows 7.  anyone able to (I know its a lot to ask) give me a walkthrough or know of an easy program to use to achieve the compiling?