SD/MMC to PCMCIA

I have a HP iPaq Pocket PC H4155, and I want to use a PCMCIA card with it. It is a wireless aircard made by Sierra for T-Mobile. It has Pocket PC Drivers as well. Is there any way to either convert the SD/MMC slot to PCMCIA by some connverter/atachment? Or is there a sleeve that will fit that palm?