Your sound card should have an Audio In: without this you're blocked from
going further.
If it has audio in, then it may be by way of a mini banana plug [stereo
jack] or 2 x RCA sockets. Depending on the turntable you may need an adapter
to suit.
A low budget soltuion could include be worked out.
If you have a reasonable moving magnet cartridge on the tonearm, then it
will be necessary to use a pre-amplifier to boost the output signal to a
level that will make it compatible with the sound card. Read the specs for
this supplied with the PC and then go to Tandy or the like to buy a pre-amp.
If you audio amplifier has a spare audio out signal [such as used when
connecting to a tape recoder] you can use this instead and save a few
dollars.
You will need a sound recording application such as:
http://www.loadtrend.com/soundrecorder/
This will allow you to capture the tracks onto the PC hard drive and convert
them from analogue to digital. You may also consider getting a sophisticated
application that will allow you to 'clean up' the sound track and remove
'noises such as 'pops', 'cracks' and 'scratches' that are transmitted off the
vinyl.
Once captured and cleaned up it's ready to burn to CD, you need something
like Stomp Record Now Max because Windows CD writing application is
deliberate engineered so as to be incompatible with audio files as in this
case.
If you want a complete description of the items that I use, such as what
sound card and recording software etc. post back to this forum with your
email address: munge it so as to avoid spamming. Munge is a term that
describes the disguising of your email address. For example use 'AT' not '@'
and 'DOT not '.' and include a space before and after the AT and DOT so that
the email 'reads' as plain text: such that (e-mail address removed) would be my
DOT adrress AT hotmail DOT com