One way using string patterns:

    string = ImportString["<12> cfg <15.21>  bhg    v<(24)>    e<65>   True
      <12> cfg <15.21>  bhg    v<33>      e<(77)> False
      <83> fff <67>     bhg     < >       e<(43)> True
      <11> fff <14.21>  bff    v<(1.42)>  e<44>   True
      <76> cfg <76.3>   fff     < >       e<21>   True
      <98> cff <34>     rrs    v<33>       < >    True", "Lines"];
    StringCases[string, {
      "<" ~~ p : NumberString ~~ ">" -> p,
      "<(" ~~ n : NumberString ~~ ")>" -> -n,
      "<" ~~ " " ~~ ">" -> "NA",
      bool : ("True" | "False") -> bool /. {"True" -> "T", "False" -> "F"}
      }]

>     {{"12", "15.21", -"24", "65", "T"}, {"12", "15.21", "33", -"77", 
>       "F"}, {"83", "67", "NA", -"43", "T"}, {"11", "14.21", -"1.42", "44",
>        "T"}, {"76", "76.3", "NA", "21", "T"}, {"98", "34", "33", "NA", 
>       "T"}}