I am too. I talked to C-Stud Ville and he said the only way you can get those albums are through him because his brother died sometime in the 00s, so he's not well off financially for distribution. Lil Sin explains so on the track Success. (That was in 2005.) He is doing great now. He's just really busy. Thats why.
He now runs his own label SoufField and is affiliated Santee called PRC Entertainment. Santee started that label after he got out of Huntsville in 1996. Lil Sin has probably sold more than 3,000,000 units. Lil Sin even reached platinum status with Livin-N-Sin. Frustrated By Death and Who Got Yo Back both sold 300,000 units. Both Young Namar albums are great! You should buy them if you can! I don't know what happened with BIYO album?
I don't know what happened to BLVD Records and Sugarbear. They must've folded sometime in 2001. Ask Nuttzo210 on eBay. That person might know more about Lil Sin.
The artists Lil Sin is producing for are his son Lil Sin Jr., Liveola, Santee, C-Stud Ville, Lady Lunatic, Lady 14, Mr. Joshay, and Pimp C. I haven't been keeping track of that. So my info might not be accurate.