The answer to your first question is here: https://communities.sas.com/t5/Statistical-Procedures/VIP-values-in-PLS/m-p/114388#M6021
Since you said you tried that command "but doesn't work", please provide more information about what you did (the full PROC PLS code), what happened and what you saw that indicated it didn't work. Please, in the future, do not ever say "but doesn't work" by itself without more explanation that I just asked for..
Regarding your second question, you have to output the regression coefficients to a SAS data set and plot from there. Please use the command
ods output parameterestimates=parms;
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