problam with android..please help me:(

[roniskip]

hi,
i have htc legend
I downloaded some games and applications for a site, it meant that I can not download applications to Android Market and I can not open messages because of this,</SPAN>
When I press the message appears a message "phone stroage is full" and the phone stroage isnt full..</SPAN>
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what can I do with it? please help me..</SPAN>
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thanks.</SPAN>