I think installing DAP without uninstalling 5.3 will preserve your downloads. Most download managers have an index file of all downloads, but I dunno about DAP. BTW, finish those dloads with DAP, and trash it and move to a better one like Flashget.
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Hardware - Celeron 266 MHz, 128MB RAM, Intel i740 8MB RAM
Software - Slackware Linux 10.1; Archlinux 0.7; Windows 98 SE
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u can always export the dap download list from its options there
and import it back into ur new software
also i think dap will over write the required files but keep ur list safe
give it a shot
backup first ofcourse
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