Insert a blank CD-R or CD-RW into the unit. Press the Function button on the remote (key above Vol+ on the bottom right of the remote) or the turntable itself (top left of the control panel) until the unit is in Phono mode. Then insert the pre-recorded cassette and press Play to advance the tape to where you wish to start recording. With the cassette playing, press the CD Record button (recording will flash on the display). The CD Record button is to the left of the fast reverse button on the unit; it is labeled Record on the remote and is below the Stop button. When one side of the cassette finishes playing, press Stop. Wait for the display to return to Phono. Then eject and turn over the cassette to play side 2 (if you want to record both sides of the tape). Press Play again to advance the tape and then press Record. When this side finishes, press Stop and then Finalize. Finalize is at the bottom left of the remote buttons and to the left of the stand by indicator on the turntable.
The manual is available at Crosley: http://www.crosleyradio.com/Product.aspx?pid=1790
. The direct link to the manual is http://www.crosleyradio.com/Manuals/CR248_Manual.pdf
. Recording a cassette to CD is on page 11 (page 12 of the pdf).
I hope this helps.