Every time i get on LimeWire, i have to go through all the songs and put the ones i want down in the playlist. Ive saved them and everything but it never works! Does anyone know how to do th is or have this problem?

You mean you actually use LW's .mp3 player as your regular player?
Don't: depending on your configuration, it can be extremely chopy and it sometimes takes ages from the moment that you click Launch to the moment you actually hear something coming out of those speakers.
Try another application that has Playlist functions (iTunes is great for Mac and -possibly- for PC, while Windoze Media Player -for PC- also has this function -if I remember well).
LW's .mp3 player is there only for previewing the files that are being dlded.
Besides, I think that everytime you click on that Launch button, LW creates a "snapshot" (I don't know what it's walled so I improvise, ok?) of the file at the moment you clicked so that it can play a file that doesn't constantly have additional information coming in. If you click that button many times, all you're doing is decreasing Hard Disk capacity by filling it with useless files.

__________________
iMac G4 OSX 10.3.9
RAM 256MB
LW 4.10.5 Basic
ADSL anything from 3 to 8Mbps/around 1024kbps

"Raise your can of Beer on high
And seal your fate forever
Our best years have passed us by
The Golden Age Of Leather"
-Blue Öyster Cult-

Uh, yeah. Ignore that las paragraph since the playlist uses finished dlds, right?

__________________
iMac G4 OSX 10.3.9
RAM 256MB
LW 4.10.5 Basic
ADSL anything from 3 to 8Mbps/around 1024kbps

"Raise your can of Beer on high
And seal your fate forever
Our best years have passed us by
The Golden Age Of Leather"
-Blue Öyster Cult-